=20
=20
=20
- News
- Electronic = Projects
- PCB & = Parts
- Testing & = Tools
- Others
=
=20
=20
=20![3D"PCB]( "3D\"PCB")
=20 =20
PCB Design Layout Rules = Recommendation
=20In the PCB design of electronics circuit, it is important that one = plan and=20 has a checklist of the do's and don'ts before proceeding to do the = printed=20 circuit board layout. The understanding of the circuit is critical to = the=20 design, for example one needs to understand the maximum current and = voltage that=20 are carried by each conductor in order to determine the track width of = the=20 conductor and the type of PCB that will be used.
=20=20
The voltage difference between each track will determine the = clearance=20 between each conductor. If the clearance is not enough, chances are that = the=20 electrical potential between each track will cause spark over and short = circuit=20 the PCB.
This will cause functional failure to the product and the safety of = the users=20 that are using the product will be compromised. It is therefore critical = for one=20 to understand some of this basics requirements before one proceed to = design the=20 PCB.
Tracks=20
Restricted Area
Tracks should not be located on the areas that can caused them to be = peeled=20 off easily. One of the restricted area is holes on the PCB which are = used to=20 mount screws or PCB spacers. These holes are usually used to secure the = PCB to a=20 casing or to secure it in a fixed place.
The edges of the PCB should not have any tracks as these areas are =
usually=20
used to transport the PCB from one process to another process by using a =
conveyor belt. These edges are places where the possibility of scratches =
and=20
cracking of the PCB happens. The recommended areas that should not have =
any=20
track is as shown in the diagram below assuming a hole diameter of 4 mm =
which is=20
used to mount a PCB spacer.
Conductor = Thickness=20 and Width
The PCB conductor thickness and width will determine the current = carrying=20 capacity of the track. The IPC standard for the conductor thickness and = width of=20 the common 1 oz/square-feet PCB is as shown below. However, it is always = advisable to use a bigger value due to the tolerance and variation of = the PCB=20 processes. If higher current carrying capacity is required, a 2 = oz/square-feet=20 or 3 oz/square-feet type of PCB is preferred. Many electronics hobbyist = prefer=20 to solder a thick cooper conductor on the PCB track to increase the = current=20 carrying capacity of the track.
PCB = Design=20 Electrical Clearance
Many safety standards call for a minimum of 8mm clearance between 40V = mains=20 and other isolated signal tracks. These safety standards are to ensure = that the=20 users that are using the products will be protected from any electrical=20 hazards.
For non main voltages, IPC recommend the electrical clearance between = adjacent tracks. It is important to know the maximum difference in = voltage that=20 are applied on the adjacent tracks of a PCB. The electrical clearance = specs of=20 IPC standard is as shown below for various condition of the PCB.
Coating the PCB will help to reduce the requirements of the track = clearance.=20 However, the quality of the coating as well as the material used are = critical to=20 ensure that these requirements are met. Again, it is always advisable to = increase the clearance to cater for the variations of the PCB = processes.
Back=20
To PCB Design Home Page
=20 =20
=20
=20
=20=20
=20
=20
=20
Two=20 Way Light Switch
Learn how a 2W=20 light switch is wired. Simple but fascinating. Check=20 out here.
PCB=20 Prototypes
Make your own=20
printed circuit board and learn the processes involved along the way.
Free=20 Magazines
Apply and get=20 your own digital copies of free engineering magazines here.
[?]Subscribe=20
To This Site
=20
=20
=20
=
=20
Digital=20
Dice
Project
Explore the use of 7-Segment Display, =
555 Timer,=20
Decade Counter and Binary Adder. Get the ci=
rcuit.
Battery=20
Tester
Project
Design and build a battery tester to = test dry=20 cell and rechargeable battery with a voltage of less than 2V.=20 Check = here.
Door=20 Bell
Construct this simple door bell chime = and have=20 fun. Find out more = here.
Electronic=20 Kits
If you are looking for electronic kits, = electronic gadgets or robotic kits, get them here.
Project
Build this simple home alarm to protect =
your=20
house from intruders. See the sche=
matic=20
circuit.
=20
=20
tags in the code=0A=
break;=0A=
}=0A=
}=0A=
if (!elem) {=0A=
throw new Error("INS tag with class name 'adsbygoogle' is absent =
in the code");=0A=
}=0A=
elem.style.width =3D width+'px';=0A=
elem.style.height =3D height+'px';=0A=
elem.setAttribute('data-ad-client',client);=0A=
elem.setAttribute('data-ad-slot',slot);=0A=
};=0A=
------=_NextPart_000_0000_01D0DB57.22142E50
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Content-Transfer-Encoding: quoted-printable
Content-Location: http://www.electronics-project-design.com/sd/support-files/fix.js
var FIX =3D FIX || {};=0A=
=0A=
FIX.addEventListener =3D function(el, type, callback) {=0A=
if (typeof el.addEventListener =3D=3D=3D 'function') {=0A=
el.addEventListener(type, callback, false);=0A=
}=0A=
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el.attachEvent('on'+type, callback);=0A=
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};=0A=
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FIX.pageWrapperHeight =3D 0;=0A=
FIX.designMode =3D "";=0A=
FIX.passwordProtection =3D "none";=0A=
FIX.headerHeight =3D 0;=0A=
FIX.isFixedHeader =3D false;=0A=
=0A=
// gets a number value for a given property describing box model =
dimensions=0A=
FIX.getBoxPropertyValue =3D function(el, property) {=0A=
var camelProperties =3D {=0A=
'padding-top' : 'paddingTop',=0A=
'padding-right' : 'paddingRight',=0A=
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'margin-right' : 'marginRight',=0A=
'margin-bottom' : 'marginBottom',=0A=
'margin-left' : 'marginLeft'=0A=
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if (!camelProperties[property]) {=0A=
throw new Error('FIX unknown property "'+property+'".');=0A=
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var styleValue =3D '';=0A=
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if (typeof window.getComputedStyle =3D=3D=3D 'function') {=0A=
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styleValue =3D =
parseInt(el.currentStyle[camelProperties[property]], 10);=0A=
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return styleValue;=0A=
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// finds .Liner (section's inner wrapper) for a given section ID=0A=
FIX.findLiner =3D function(parentId) {=0A=
var parent =3D document.getElementById(parentId);=0A=
if (!parent) {=0A=
return;=0A=
}=0A=
var el =3D parent.firstChild;=0A=
while (el) {=0A=
if (/(^|\s)Liner(\s|$)/.test(el.className)) {=0A=
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}=0A=
el =3D el.nextSibling;=0A=
}=0A=
};=0A=
=0A=
// checks if an image is an ImageBlock's one=0A=
FIX.isImageBlockImage =3D function(img) {=0A=
var el =3D img;=0A=
while (el) {=0A=
if (/(^|\s)ImageBlock(\s|$)/.test(el.className)) {=0A=
return true;=0A=
}=0A=
else if (/(^|\s)Liner(\s|$)/.test(el.className)) {=0A=
return false; // no need to continue looking=0A=
}=0A=
el =3D el.parentNode;=0A=
}=0A=
return false;=0A=
};=0A=
=0A=
FIX.computeHeightForLiner =3D function(el, height) {=0A=
var verticalPadding =3D FIX.getBoxPropertyValue(el, 'padding-top') +=0A=
FIX.getBoxPropertyValue(el, 'padding-bottom');=0A=
var verticalBorder =3D FIX.getBoxPropertyValue(el, =
'border-top-width') +=0A=
FIX.getBoxPropertyValue(el, =
'border-bottom-width');=0A=
var topMargin =3D FIX.getBoxPropertyValue(el, 'margin-top');=0A=
=0A=
return height - verticalPadding - verticalBorder - topMargin;=0A=
};=0A=
=0A=
FIX.computeAvailableWidth =3D function(el) {=0A=
var horizontalPadding =3D FIX.getBoxPropertyValue(el, =
'padding-left') +=0A=
FIX.getBoxPropertyValue(el, 'padding-right');=0A=
=0A=
return el.clientWidth - horizontalPadding;=0A=
};=0A=
=0A=
// gets total width (=3D amount of space reserved by an element) of an =
element=0A=
FIX.computeTotalWidth =3D function(el, availableWidth) {=0A=
var horizontalPadding =3D FIX.getBoxPropertyValue(el, =
'padding-left') +=0A=
FIX.getBoxPropertyValue(el, 'padding-right');=0A=
var horizontalBorder =3D FIX.getBoxPropertyValue(el, =
'border-left-width') +=0A=
FIX.getBoxPropertyValue(el, =
'border-right-width');=0A=
var horizontalMargin =3D FIX.getBoxPropertyValue(el, 'margin-left') +=0A=
FIX.getBoxPropertyValue(el, 'margin-right');=0A=
=0A=
// fix for an issue that might be caused by user's custom CSS =
overriding SS default CSS code for images=0A=
// for div-based layouts negative right margins appears on: Safari =
lte 4 (for block images)=0A=
// and IE 9, Chrome ~20 (for block images with margin: auto)=0A=
// the negative margin equals the width of that part of an image =
that would stick out=0A=
// if no image resizing was performed=0A=
if (horizontalMargin =3D=3D=3D (availableWidth - el.width - =
horizontalBorder)) {=0A=
horizontalMargin =3D 0;=0A=
}=0A=
=0A=
return el.width + horizontalPadding + horizontalMargin + =
horizontalBorder;=0A=
};=0A=
=0A=
// sets min-height (height for IE6) for columns' liners to make all =
columns equally long=0A=
FIX.fixLiners =3D function() {=0A=
var pageWrapper =3D document.getElementById('PageWrapper');=0A=
var ids =3D ['ContentColumn', 'NavColumn', 'ExtraColumn'];=0A=
var highestLinerHeight =3D 0;=0A=
var liners =3D [];=0A=
var id;=0A=
var liner;=0A=
var i, ilen;=0A=
var linerNewHeight;=0A=
=0A=
// find the longest liner=0A=
for (i=3D0, ilen=3Dids.length; i highestLinerHeight) {=0A=
highestLinerHeight =3D linerHeight;=0A=
}=0A=
}=0A=
}=0A=
=0A=
// make all liners equally long=0A=
for (i=3D0, ilen=3Dliners.length; i 0) {=0A=
linerNewHeight =3D linerNewHeight + 'px';=0A=
// check if the browser understands min-height=0A=
// by checking maxHeight property for body=0A=
// as checking minHeight will not detect not =
understanding max/min height by IE6=0A=
if (typeof document.body.style.maxHeight =3D=3D=3D =
"undefined") {=0A=
// IE 6=0A=
liner.style.height =3D linerNewHeight;=0A=
}=0A=
else {=0A=
liner.style.minHeight =3D linerNewHeight;=0A=
}=0A=
}=0A=
}=0A=
}=0A=
=0A=
// set pageWrapper height to check later if it has changed (i.e. =
because of 3rd party scripts)=0A=
FIX.pageWrapperHeight =3D pageWrapper.offsetHeight;=0A=
};=0A=
=0A=
// checks if image is inside a columns block and if yes, returns a column=0A=
FIX.getColumnsBlockColumn =3D function(image) {=0A=
var el =3D image.parentNode;=0A=
var columnsBlock =3D false;=0A=
while (el) {=0A=
if (/(^|\s)columns_block(\s|$)/.test(el.className)) {=0A=
columnsBlock =3D true;=0A=
break;=0A=
} else if (/(^|\s)Liner(\s|$)/.test(el.className)) {=0A=
return false;=0A=
}=0A=
el =3D el.parentNode;=0A=
}=0A=
el =3D image.parentNode;=0A=
while (el) {=0A=
if (el.tagName =3D=3D=3D "TD") {=0A=
return el;=0A=
}=0A=
el =3D el.parentNode;=0A=
}=0A=
return false;=0A=
};=0A=
=0A=
// resize image if it's too large=0A=
FIX.imageResizer =3D function(image, maxWidth) {=0A=
var imgTotalWidth;=0A=
// remove inline style that hid the image=0A=
image.style.display =3D "";=0A=
=0A=
imgTotalWidth =3D FIX.computeTotalWidth(image, maxWidth);=0A=
=0A=
if (imgTotalWidth > maxWidth) {=0A=
// set new width=0A=
image.width =3D (image.width - (imgTotalWidth - maxWidth));=0A=
// override image height to avoid changing image's aspect ratio=0A=
image.style.height =3D "auto";=0A=
// fix liners height in legacy templates=0A=
if (FIX.designMode =3D=3D=3D "legacy") {=0A=
if (typeof MOBILE =3D=3D=3D 'undefined' || MOBILE.viewMode =
!=3D=3D 'mobile') {=0A=
FIX.fixLiners();=0A=
}=0A=
}=0A=
}=0A=
};=0A=
=0A=
// resize too wide ImageBlock images to match the available space =
(liners or columns block's columns)=0A=
FIX.fixImgs =3D function() {=0A=
var ids;=0A=
var id;=0A=
var liners =3D [];=0A=
var liner;=0A=
var availableWidth =3D 0;=0A=
var i, ilen;=0A=
var images;=0A=
var image;=0A=
var originalAttributeWidth;=0A=
=0A=
// password protected content is on this page, yet no correct =
password has been submitted=0A=
if (FIX.passwordProtection =3D=3D=3D "on") {=0A=
ids =3D ['NavColumn', 'ExtraColumn', 'Header', 'Footer'];=0A=
// correct password has been submitted=0A=
} else if (FIX.passwordProtection =3D=3D=3D "off") {=0A=
ids =3D ['ContentColumn'];=0A=
// hide images only in ContentColumn=0A=
var styleContent =3D '#ContentColumn .ImageBlock img { display: =
none; }';=0A=
var head =3D document.getElementsByTagName("head")[0];=0A=
var style =3D document.createElement("style");=0A=
style.setAttribute('type', 'text/css');=0A=
style.setAttribute('id', 'hideImgs');=0A=
if (style.styleSheet) {=0A=
// IE=0A=
style.styleSheet.cssText =3D styleContent;=0A=
}=0A=
else {=0A=
// browsers=0A=
style.appendChild(document.createTextNode(styleContent));=0A=
}=0A=
head.appendChild(style);=0A=
} else {=0A=
// there's no password protected content on this page=0A=
ids =3D ['ContentColumn', 'NavColumn', 'ExtraColumn', 'Header', =
'Footer'];=0A=
}=0A=
=0A=
var hideImgsStyle =3D document.getElementById("hideImgs");=0A=
=0A=
// read liners' available widths and store images for further =
operations=0A=
// at this point all ImageBlock images are hidden=0A=
for (i=3D0, ilen=3Dids.length; i 0) {=0A=
var anchorId =3D ahref.substr(ahref.indexOf("#") + 1, =
ahref.length);=0A=
var el =3D document.getElementById(anchorId);=0A=
if (el) {=0A=
(function (alink, element) {=0A=
FIX.addEventListener(alink, 'click', function =
(event) {=0A=
scrollWithOffset(event, element, alink.href);=0A=
}, false);=0A=
}(links[i], el))=0A=
}=0A=
}=0A=
}=0A=
};=0A=
=0A=
FIX.doEndOfHead =3D function() {=0A=
// use ID so we can remove this element later=0A=
// hide only ImageBlock images - this is needed later for available =
space computations=0A=
document.write('');=0A=
};=0A=
=0A=
FIX.doEndOfBody =3D function() {=0A=
var pageWrapper =3D document.getElementById('PageWrapper');=0A=
if (!pageWrapper) {=0A=
return; // quit silently when page is not a standard SS template =
(just in case)=0A=
}=0A=
=0A=
var startLoop =3D function() {=0A=
var counter =3D 0;=0A=
var max =3D 120;=0A=
var delay =3D 500;=0A=
var loop =3D function() {=0A=
counter++;=0A=
if (counter > max) {=0A=
return;=0A=
}=0A=
pageWrapper =3D document.getElementById('PageWrapper');=0A=
// check if pageWrapper height has changed=0A=
if (pageWrapper.offsetHeight !=3D=3D FIX.pageWrapperHeight) {=0A=
FIX.fixLiners();=0A=
}=0A=
setTimeout(function() {=0A=
loop();=0A=
}, delay);=0A=
};=0A=
loop();=0A=
};=0A=
=0A=
FIX.fixImgs();=0A=
=0A=
if ((typeof MOBILE =3D=3D=3D 'undefined' || MOBILE.viewMode !=3D=3D =
'mobile') && FIX.isFixedHeader) {=0A=
FIX.headerHeight =3D =
document.getElementById("Header").offsetHeight;=0A=
FIX.scrollIntoViewHashLinks();=0A=
}=0A=
=0A=
if (window.location.hash) {=0A=
FIX.addEventListener(window, 'load', FIX.scrollIntoViewHash);=0A=
}=0A=
=0A=
// fix liners height only for legacy templates=0A=
if (FIX.designMode =3D=3D=3D "legacy") {=0A=
// fix liners height right away=0A=
if (typeof MOBILE =3D=3D=3D 'undefined' || MOBILE.viewMode =
!=3D=3D 'mobile') {=0A=
FIX.fixLiners();=0A=
// do fixLiners once again when all images are loaded as =
this may affect columns' height=0A=
// and also run it a few more times in a loop (against 3rd =
party scripts that may extend a page)=0A=
if (document.readyState =3D=3D=3D "complete") {=0A=
// if the page is already loaded (i.e. for protected =
content)=0A=
startLoop();=0A=
} else {=0A=
FIX.addEventListener(window, 'load', startLoop);=0A=
}=0A=
}=0A=
}=0A=
=0A=
FIX.horizontalNavbar();=0A=
};=0A=
=0A=
FIX.track =3D function (anchorEl) {=0A=
if (/sbi[^.]+.?\.sitesell\.com/.test(window.location.href)) {=0A=
return true; // we don't want to track links in preview=0A=
}=0A=
else {=0A=
var anchorElHref =3D =
/href=3D"(.*?)"/g.exec(anchorEl.outerHTML)[1];=0A=
var path =3D anchorElHref.split("/").slice(3).join("/");=0A=
var matches =3D anchorElHref.match(/^https?\:\/\/([^\/]+)/);=0A=
var thisDomain =3D window.location.hostname.replace(/^www\./, =
"");=0A=
if (matches &&=0A=
(thisDomain !=3D=3D matches[1].substr(-thisDomain.length)) =
&& // local link=0A=
(!/google/.test(matches[1])) && // don't include TLD ".com" =
because don't want to track "google.ca" either=0A=
=
(!/\.mp4|\.avi|\.css|\.doc|\.docx|\.dot|\.dotx|\.exe|\.flv|\.gif|\.jpeg|\=
.jpg|\.js|\.mov|\.mp3|\.mp4|\.mpeg|\.mpg|\.png|\.potx|\.pps|\.ppsx|\.ppt|=
\.pptx|\.qt|\.ra|\.ram|\.rm|\.swf|\.tex|\.txt|\.wav|\.wma|\.wmv|\.xls|\.x=
lsx|\.xlt|\.xltx|\.xml|\.zip/.test(path)) // media link=0A=
) {=0A=
// The link is an external, non-media and non-google link. =
We want to track this click.=0A=
var url =3D '/cgi-bin/counter.pl?url=3D' + =
encodeURIComponent(anchorElHref) + '&referrer=3D' + =
encodeURIComponent(window.location);=0A=
if (anchorEl.target.toLowerCase() =3D=3D=3D '_blank') {=0A=
window.open(url);=0A=
}=0A=
else {=0A=
window.location.href =3D url;=0A=
}=0A=
return false;=0A=
}=0A=
else {=0A=
return true;=0A=
}=0A=
}=0A=
};=0A=
=0A=
// password protection=0A=
var getMsg =3D (function() {=0A=
var original =3D getMsg;=0A=
return function(form) {=0A=
var result =3D original(form);=0A=
if (document.getElementById('ProtectedContent').style.display =
=3D=3D=3D 'block') {=0A=
FIX.passwordProtection =3D "off";=0A=
FIX.doEndOfBody();=0A=
}=0A=
return result;=0A=
};=0A=
}());=0A=
=0A=
// IE fix for start index negative values in substr=0A=
if ('ab'.substr(-1) !=3D 'b') {=0A=
String.prototype.substr =3D function(substr) {=0A=
return function(start, length) {=0A=
// did we get a negative start, calculate how much it is =
from the beginning of the string=0A=
if (start < 0) start =3D this.length + start;=0A=
=0A=
// call the original function=0A=
return substr.call(this, start, length);=0A=
}=0A=
} (String.prototype.substr);=0A=
}=0A=
=0A=
FIX.getByClassName =3D function(cn){=0A=
var arr =3D [];=0A=
var els =3D document.getElementsByTagName("*");=0A=
var exp =3D new RegExp("^(.* )?"+cn+"( .*)?$", "g");=0A=
for (var i =3D 0; i < els.length; i++ ){=0A=
if (exp.test(els[i].className)){=0A=
arr.push(els[i]);=0A=
}=0A=
}=0A=
return arr;=0A=
};=0A=
=0A=
FIX.horizontalNavBarWide =3D function() {=0A=
if (document.all && !document.querySelector) {=0A=
var wideHorizontalNavs =3D =
FIX.getByClassName("HorizontalNavBarWide");=0A=
for(var i =3D 0, ilen =3D wideHorizontalNavs.length; i < ilen; =
i++) {=0A=
wideHorizontalNavs[i].className =3D =
wideHorizontalNavs[i].className.replace("HorizontalNavBarWide", =
"HorizontalNavBarCenter");=0A=
}=0A=
}=0A=
};=0A=
=0A=
FIX.horizontalNavbar =3D function() {=0A=
var horizontalNavs =3D FIX.getByClassName("HorizontalNavBar");=0A=
var horizontalNavEntered =3D [];=0A=
var delay =3D 350;=0A=
var mobile =3D /mobile/.test(document.documentElement.className);=0A=
var ie6 =3D (typeof document.body.style.maxHeight =3D=3D=3D =
'undefined');=0A=
=0A=
function showSubmenu(li) {=0A=
li.className +=3D " hover";=0A=
}=0A=
=0A=
function hideSubmenu(li) {=0A=
li.className =3D li.className.replace(/(^|\s+)hover/, '');=0A=
}=0A=
=0A=
function hideTheSameLevelSubmenus(nav, level) {=0A=
var exp =3D new RegExp("li"+ level);=0A=
var lis =3D nav.getElementsByTagName("li");=0A=
for (var i =3D 0, ilen =3D lis.length; i < ilen; i++) {=0A=
var liClassName =3D lis[i].className;=0A=
if (liClassName.match(/hover/) && liClassName.match(exp)) {=0A=
hideSubmenu(lis[i]);=0A=
}=0A=
}=0A=
}=0A=
=0A=
// hide submenus on mobile (tap outside the navigation)=0A=
if (mobile) {=0A=
function hideSubmenuMobile() {=0A=
var hovers =3D document.querySelectorAll(".HorizontalNavBar =
.hover");=0A=
for(var i =3D 0, ilen =3D hovers.length; i < ilen; i++) {=0A=
hovers[i].className =3D =
hovers[i].className.replace(/(^|\s+)hover/, '');=0A=
}=0A=
}=0A=
function revertPointers() {=0A=
var pointers =3D document.querySelectorAll(".navheader b");=0A=
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}=0A=
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=0A=
var pageWrapper =3D document.getElementById("PageWrapper");=0A=
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}=0A=
=0A=
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=0A=
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}(horizontalNavs[i]));=0A=
}=0A=
=0A=
// a flag to control whether to use delay (navigation not =
entered yet) or show submenus instantly=0A=
horizontalNavEntered.push(false);=0A=
(function(nav, i) {=0A=
var timer =3D null;=0A=
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clearTimeout(timer);=0A=
timer =3D setTimeout(function() {=0A=
horizontalNavEntered[i] =3D true;=0A=
}, delay);=0A=
});=0A=
FIX.addEventListener(nav, 'mouseout', function() {=0A=
clearTimeout(timer);=0A=
timer =3D setTimeout(function() {=0A=
horizontalNavEntered[i] =3D false;=0A=
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=0A=
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if (mobile) {=0A=
(function(li, i) {=0A=
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li.className.match(/li[0-9]/).input[2];=0A=
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} else {=0A=
hideSubmenu(li);=0A=
}=0A=
});=0A=
}(lis[j], i));=0A=
}=0A=
else { // desktop=0A=
(function(li, i) {=0A=
var timer =3D null;=0A=
var localDelay =3D delay;=0A=
FIX.addEventListener(li, 'mouseover', function(e) {=0A=
clearTimeout(timer);=0A=
if (!li.className.match(/hover/)) {=0A=
if (li.className.match(/submenu/)) {=0A=
var navigationLevel =3D =
li.className.match(/li[0-9]/).input[2];=0A=
=
hideTheSameLevelSubmenus(horizontalNavs[i], navigationLevel);=0A=
}=0A=
if (horizontalNavEntered[i]) {=0A=
localDelay =3D 0;=0A=
} else {=0A=
localDelay =3D delay;=0A=
}=0A=
timer =3D setTimeout(function() {=0A=
showSubmenu(li);=0A=
}, localDelay);=0A=
}=0A=
});=0A=
=0A=
FIX.addEventListener(li, 'mouseout', function() {=0A=
clearTimeout(timer);=0A=
if (li.className.match(/hover/)) {=0A=
timer =3D setTimeout(function() {=0A=
hideSubmenu(li);=0A=
}, delay);=0A=
}=0A=
});=0A=
=0A=
FIX.addEventListener(li, 'click', function() {=0A=
if (!li.className.match(/hover/)) {=0A=
clearTimeout(timer);=0A=
showSubmenu(li);=0A=
}=0A=
});=0A=
}(lis[j], i));=0A=
}=0A=
}=0A=
=0A=
// IE6 hover span=0A=
if (ie6) {=0A=
var spans =3D horizontalNavs[i].getElementsByTagName("span");=0A=
for(var k =3D 0, klen =3D spans.length; k < klen; k++) {=0A=
(function(span) {=0A=
FIX.addEventListener(span, 'mouseover', function() {=0A=
span.className +=3D " hover";=0A=
});=0A=
FIX.addEventListener(span, 'mouseout', function() {=0A=
span.className =3D =
span.className.replace(/(^|\s+)hover/, '');=0A=
});=0A=
}(spans[k]));=0A=
}=0A=
}=0A=
=0A=
// generate submenu pointers=0A=
var navheaders =3D =
horizontalNavs[i].getElementsByTagName("span");=0A=
for(var l =3D 0, llen =3D navheaders.length; l < llen; l++) {=0A=
navheaders[l].innerHTML =3D '' + =
navheaders[l].innerHTML;=0A=
}=0A=
}=0A=
FIX.horizontalNavBarWide();=0A=
};
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