/* Copyright Bridgeline Digital, Inc. An unpublished work created in 2009. All rights reserved. This software contains the confidential and trade secret information of Bridgeline Digital, Inc. ("Bridgeline").  Copying, distribution or disclosure without Bridgeline's express written permission is prohibited */
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") {
		// Cover <select> elements with <iframe> elements only in IE < 7
		if ((navigator.appVersion.substr(22,2)=="6.") || (navigator.appVersion.substr(22,2)=="5.")) {
			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])
		 {
			// BEGIN custom add-on for NFP
			if(/\bselected\b/.test(ieLIs[i].className))
			{
				 if(ieLIs[i].nextSibling) {ieLIs[i].nextSibling.className+=" hoverNext";}
			}
			//END custom add-on for NFP
			
			// Add a sfhover class to the li.
			ieLIs[i].onmouseover=function()
			 {			    
				if(!/\bsfhover\b/.test(this.className))
				{
					this.className+=" sfhover";
					//BEGIN custom add-on for NFP
					this.className=this.className.replace(' hoverNext', '');
				    if(this.nextSibling) {				       
				       if(!/\bhoverNext\b/.test(this.nextSibling.className)) { 
							this.nextSibling.className+=" hoverNext";
						}		        
				    }
					//END custom add-on for NFP
			    }
			}
			ieLIs[i].onmouseout=function() 
			{
				if(!this.contains(event.toElement))
				{
					this.className=this.className.replace('sfhover', '');
					
					// BEGIN custom add-on for NFP
					if(this.nextSibling && !/\bselected\b/.test(this.className)) { 
					   this.nextSibling.className=this.nextSibling.className.replace(' hoverNext', '');
					}
					if(this.previousSibling) { 
						  if(/\bselected\b/.test(this.previousSibling.className)){
							if(!/\bhoverNext\b/.test(this.className)) {
								this.className+=" hoverNext";
							}
						}
					}
					// END custom add-on for NFP
				}
			}
		}
	}
	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