loaded=false;
var isInternetExplorer = (document.all) ? true : false;

function init() {
	try {
	menuArray=new Array();
	for (var i=0;i<5;i++) { //nav menus
		menuArray[i] = document.getElementById("navDrop"+i); 
		cleanWhiteSpace(menuArray[i]);
		var n = menuArray[i].childNodes[1];//menu 
		if (i==4) break;
		for (j=0;j<n.childNodes.length;j++) { 
			n.childNodes[j].className ="navMenuItemOff";  
			n.childNodes[j].childNodes[0].className ="navMenuItemLinkOff";  
			n.childNodes[j].makeRollObj = makeRollObj;
            n.childNodes[j].makeRollObj(n.childNodes[j]); 
		} 
	} 
	
	var imgArray = new Array('nav_view_cart','nav_checkout','btn_search');
	imgRollArray = new Array();
	for (var i=0;i<imgArray.length;i++){
		imgRollArray[i] = new Array();
		imgRollArray[i][0] = new Image();
		imgRollArray[i][0].src = "/images/common/nav/" + imgArray[i] + ".gif";
		imgRollArray[i][1] = new Image();
		imgRollArray[i][1].src = "/images/common/nav/" + imgArray[i] + "_on.gif";
		imgRollArray[i][2] = new Image();
		imgRollArray[i][2].src = "/images_es/common/nav/" + imgArray[i] + ".gif";
		imgRollArray[i][3] = new Image();
		imgRollArray[i][3].src = "/images_es/common/nav/" + imgArray[i] + "_on.gif";	
	} 
	
	loaded=true; 
	} catch(e) {
		loaded=false;
	}
} 

function makeRollObj(s) {
	this.onmouseover = function(){
		this.className = "navMenuItemOn"; 
		this.childNodes[0].className = "navMenuItemLinkOn";
	}
	this.onmouseout = function(){
		this.className = "navMenuItemOff";
		this.childNodes[0].className = "navMenuItemLinkOff";
	}
	this.onclick = function() {
		window.location.href = this.childNodes[0].attributes["href"].value;
	}
} 

function showMenu(mn,st){
	if (loaded) { 
		if (st==1) {
			for (var i=0;i<menuArray.length;i++) {
				menuArray[i].style.visibility  = "hidden";
			}
			if(isInternetExplorer) {
				hideObjects();
			}
		} else {
			if(isInternetExplorer) {
				showObjects();
			}
		}
		menuArray[mn].style.visibility  = (st==1) ? "visible" : "hidden";
	}
}  


function showRoll(s,w,st){
	if (loaded) {  
		s.src = imgRollArray[w][st].src;
	}
}  



function showAlphaItems(n) {
	var az = document.getElementById("alphaNumeric");
	cleanWhiteSpace(az);
	for (var i=0;i<az.childNodes.length;i++) {
		try {
			az.childNodes[i+1].style.border = "none";			
			document.getElementById("alpha"+i).style.visibility = "hidden";
		} catch(e) {}
	}
	 
	if (isInternetExplorer) {
		document.getElementById("allBrands").style.height = document.getElementById("alpha"+n).clientHeight;
	} else {
		document.getElementById("firefoxBug").innerHTML = '<p><img src="/images/spacer.gif" width=1 height='+document.getElementById("alpha"+n).clientHeight+'></p>';	
	}
	
	document.getElementById("alpha"+n).style.visibility = "visible";
	az.childNodes[(n+1)].style.border = "2px solid #CCCCCC";
	az.childNodes[(n+1)].style.borderBottom = "3px solid #ffffff";	
}

function showTab(n) {
	var tabs = document.getElementById("tabMenu");
	cleanWhiteSpace(tabs);
	for (var i=0;i<tabs.childNodes.length;i++) {
		try {
			tabs.childNodes[i].childNodes[0].src = replace(tabs.childNodes[i].childNodes[0].src,'_on.gif','.gif');
			document.getElementById("tab"+i).style.visibility = "hidden";
		} catch(e) {}
	}
	if (isInternetExplorer) {
		document.getElementById("allTabs").style.height = document.getElementById("tab"+n).clientHeight;
	} else {
		document.getElementById("firefoxBug").innerHTML = '<p><img src="/images/spacer.gif" width=1 height='+document.getElementById("tab"+n).clientHeight+'></p>';	
	}	
	document.getElementById("tab"+n).style.visibility = "visible";
	tabs.childNodes[n].childNodes[0].src = replace(tabs.childNodes[n].childNodes[0].src,'.gif','_on.gif');
}

function toggleSubCat(o,n) {
	try {	
		var co = document.getElementById("manufacturer"+n);
		o.childNodes[0].src = (co.style.display=="block") ? toggleImg[0].src : toggleImg[1].src;
		co.style.display = (co.style.display=="block") ? "none" : "block";
	} catch(e) {
		alert(e.description);
	}
}

function replace(string,text,by) {
// Replaces text with by in string
    var strLength = string.length, txtLength = text.length;
    if ((strLength == 0) || (txtLength == 0)) return string;

    var i = string.indexOf(text);
    if ((!i) && (text != string.substring(0,txtLength))) return string;
    if (i == -1) return string;

    var newstr = string.substring(0,i) + by;

    if (i+txtLength < strLength)
        newstr += replace(string.substring(i+txtLength,strLength),text,by);

    return newstr;
}
function cleanWhiteSpace(node) {  
	var notWhiteSpace = /\S/;
	
	for (var x = 0; x < node.childNodes.length; x++) {
		var childNode = node.childNodes[x]
		if ((childNode.nodeType==3)&&(!notWhiteSpace.test(childNode.nodeValue))) { //whitespace text node
			node.removeChild(node.childNodes[x]);
			x--;
	    }
		if (childNode.nodeType == 1) {// elements can have text child nodes of their own
			cleanWhiteSpace(childNode);
	    }
	} 
}

function hideObjects()
{
     var selCount = document.all.tags("select");
     for (i=0; i<selCount.length; i++)
          selCount[i].style.visibility = "hidden";

}

function showObjects() {
 selCount=document.all.tags("select")
     for (i=0;i<selCount.length;i++)
          selCount[i].style.visibility="visible"
}

if (window.attachEvent) {  
	window.attachEvent("onload",init);
} else {   
	window.addEventListener("load",init,false);
}