// Created a long, long time ago by Tanny O'Haley
// Update history.
// 24 Oct 2006 - Added to http://tanny.ica.com
// 14 Jul 2006 - Modified the way the iframe is added to the DOM. I no longer use 
//			innerHTML but use DOM methods.
// 15 Sep 2006 - Added a check to see if the target element onmouseout is contained
//			in the onmouseout element. If it is then I dont' remove the
//			sfhover class. I made use of the Microsoft proprietary
//			obj.contains() method.
//		 Added check to make sure that the sfhover class is not already in
//			the li element.
//
sfHover = function() {
// Support the standard nav without a class of nav.
var el = document.getElementById("nav");
if(!/\bnav\b/.test(el.className) && el.tagName == "UL")
setHover(el);
// Find all unordered lists.
var ieNavs = document.getElementsByTagName('ul');
for(i=0; i<ieNavs.length; i++) {
var ul = ieNavs[i];
// If they have a class of nav add the menu hover.
if(/\bnav\b/.test(ul.className))
setHover(ul);
}
}
function setHover(nav) {
var ieULs = nav.getElementsByTagName('ul');
if (navigator.appVersion.substr(22,3)!="5.0") {
// IE script to cover <select> elements with <iframe>s
for (j=0; j<ieULs.length; j++) {
var ieMat=document.createElement('iframe');
if(document.location.protocol == "https:")
ieMat.src="//0";
else if(window.opera != "undefined")
ieMat.src="";
else
ieMat.src="javascript:false";
ieMat.scrolling="no";
ieMat.frameBorder="0";
ieMat.style.width=ieULs[j].offsetWidth+"px";
ieMat.style.height=ieULs[j].offsetHeight+"px";
ieMat.style.zIndex="-1";
ieULs[j].insertBefore(ieMat, ieULs[j].childNodes[0]);
ieULs[j].style.zIndex="101";
}
// IE script to change class on mouseover
var ieLIs = nav.getElementsByTagName('li');
for (var i=0; i<ieLIs.length; i++) if (ieLIs[i]) {
// Add a sfhover class to the li.
ieLIs[i].onmouseover=function() {
if(!/\bsfhover\b/.test(this.className))
this.className+=" sfhover";
}
ieLIs[i].onmouseout=function() {
if(!this.contains(event.toElement))
this.className=this.className.replace(' sfhover', '');
}
}
} else {
// IE 5.0 doesn't support iframes so hide the select statements on hover and show on mouse out.
// IE script to change class on mouseover
var ieLIs = document.getElementById('nav').getElementsByTagName('li');
for (var i=0; i<ieLIs.length; i++) if (ieLIs[i]) {
ieLIs[i].onmouseover=function() {this.className+=" sfhover";hideSelects();}
ieLIs[i].onmouseout=function() {this.className=this.className.replace(' sfhover', '');showSelects()}
}
}
}
// If IE 5.0 hide and show the select statements.
function hideSelects(){
var oSelects=document.getElementsByTagName("select");
for(var i=0;i<oSelects.length;i++)
oSelects[i].className+=" hide";
}
function showSelects(){
var oSelects=document.getElementsByTagName("select");
for(var i=0;i<oSelects.length;i++)
oSelects[i].className=oSelects[i].className.replace(" hide","");
}
// Run this only for IE.
if (window.attachEvent) window.attachEvent('onload', sfHover);
// end