var version=0; //Browser version - IE only

//Tab navigation//

checkTabs = function() {

var sfEls = document.getElementById("primary-nav").getElementsByTagName("LI");

for (var i=0; i<sfEls.length; i++) {

if(sfEls[i].parentNode.parentNode.nodeName == "LI"){

sfEls[i].childNodes[0].onfocus = function(){

this.parentNode.parentNode.className = "showMe";

this.parentNode.parentNode.parentNode.firstChild.className = "selected";

}

sfEls[i].childNodes[0].onblur = function(){

this.parentNode.parentNode.className = "";

this.parentNode.parentNode.parentNode.firstChild.className = "";

}

}

}

}

//IE Dropdown navigation

sfHover = function() {

// Support the standard nav without a class of nav.

var el = document.getElementById("primary-nav").firstChild;

el.className ="primary-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);

}

//Load tab navigation

var ct = checkTabs();

}

//

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","");

}

//

if (navigator.appVersion.indexOf("MSIE")!=-1){

temp=navigator.appVersion.split("MSIE")

version=parseFloat(temp[1])

}

if (version>=7 || version == 0){ //NON IE browser will return 0

document.write("<style>#primary-nav li ul{background-image:url(common/images/dropdown-bg-shadow.png);}</style>")

}

//Load IE6 dropdown

if (version>0 && version < 7){

if (window.attachEvent) window.attachEvent("onload", sfHover);

//Write styles

document.write("<style>ul.primary-nav iframe {position: absolute; left: -0.25em; top: -0.25em; z-index: -1; filter: progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0);} * html ul.primary-nav li { z-index: 201; }</style>");

}

//Load tab navigation for non IE browsers

if (document.addEventListener) {

document.addEventListener("DOMContentLoaded", checkTabs, false);

}

//

function show(x){

document.getElementById(x).style.display = "block"

}

function hide(x){

document.getElementById(x).style.display = "none"

}

//

function getElementsByClassName(classname)

{

var a = [];

var re = new RegExp('\\b' + classname + '\\b');

var els = node.getElementsByTagName("*");

for(var i=0,j=els.length; i<j; i++)

if(re.test(els[i].className))a.push(els[i]);

return a;

}