// ============================================================================== //
// http://www.quirksmode.org/blog/archives/2005/10/_and_the_winner_1.html         //
// cross-browser event handling for IE5+,  NS6 and Mozilla                        //
// ============================================================================== //

function addEvent(obj, type, fn) {
	if (obj.addEventListener)
		obj.addEventListener( type, fn, false );
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
	}
}

//

function right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

//

function NA_ieChildren(id,tag) {
	if(document.getElementById(id))	{
		var els = document.getElementById(id).getElementsByTagName(tag);
		for (var i=els.length-1; i>=0; i--) {
			els[i].firstChild.className += " first-child";
			els[i].lastChild.className  += " last-child";
		}
	}
}

function NA_ieChildren_init() {
	NA_ieChildren("nav-main","UL");
	NA_ieChildren("content-subsidiaries","UL");
	NA_ieChildren("siteinfo-legal","UL");
	NA_ieChildren("content","TR");
}

addEvent(window, "load", NA_ieChildren_init);

// ============================================================================== //
// NA_navMain() loops through #nav-main and sets all the ids and events needed    //
// for this navigation scheme to work properly. After setting all the proper ids  //
// and events, it calls NA_navMain_init()                                         //
// ============================================================================== //

var nav_on  = nav_onOriginal;
var timiton = "";
var timitof = "";
function ohh(id) {
	clearTimeout(timitof);
	if(document.getElementById("nav-main-li-" + nav_on)) {
		document.getElementById("nav-main-li-" + nav_on).className = "";
		document.getElementById("nav-main-img-" + nav_on).src = document.getElementById("nav-main-img-" + nav_on).src.replace("-on", "-off").replace(".gif", ".jpg");
	}
	if(document.getElementById("nav-main-li-" + id)) {
		document.getElementById("nav-main-li-" + id).className = "hover";
		document.getElementById("nav-main-img-" + id).src = document.getElementById("nav-main-img-" + id).src.replace("-off", "-on").replace(".jpg", ".gif");
	}
	nav_on = id;
}
function ahh(id) {
	nav_on = nav_onOriginal;
	for (i=0; i<4; i++) {
	    document.getElementById("nav-main-li-" + i).className = "";
		document.getElementById("nav-main-img-" + i).src = document.getElementById("nav-main-img-" + i).src.replace("-on", "-off").replace(".gif", ".jpg");
	}
	if(document.getElementById("nav-main-li-" + nav_on)) {
		document.getElementById("nav-main-li-" + nav_on).className = "hover";
		document.getElementById("nav-main-img-" + nav_on).src = document.getElementById("nav-main-img-" + nav_on).src.replace("-off", "-on").replace(".jpg", ".gif");
	}
}

function NA_navMain() {
	// check to make sure this isn't opera 7
	if((window.opera && Math.round(navigator.appVersion.substring(0, 1)) > 7) || !window.opera) {
		if(document.getElementById("nav-main")) {
			// loop through all IMGs
			var els = document.getElementById("nav-main").getElementsByTagName("IMG");
			var counter = 0;
			for (var i=0; i<els.length; i++) {
				// top level IMGs only
				if (els[i].parentNode.parentNode.parentNode.parentNode.id == "nav-main") {
					// sets id of IMG
					els[i].id = "nav-main-img-" + counter;
					// sets id of parent LI - this can't be set via JS, if not present, nav won't show
					//els[i].parentNode.parentNode.id = "nav-main-li-" + counter;
					// sets event of parent LI
					els[i].parentNode.parentNode.onmouseover = function() {
						clearTimeout(timitof);
						j = right(this.id, 1);
						timiton = setTimeout(function() {ohh(j);}, 250);
					}
					els[i].parentNode.parentNode.onmouseout = function() {
						clearTimeout(timiton);
						j = right(this.id, 1);
						timitof = setTimeout(function() {ahh(j);}, 300);
					}
					counter = counter+1;
				}
			}
			// loop through all ULs
			var els = document.getElementById("nav-main").getElementsByTagName("UL");
			for (var i=1; i<els.length; i++) {
				// add events so that the nav resets when you mouseout of #nav-main
				els[i].onmouseover = function() {
					clearTimeout(timiton);
					clearTimeout(timitof);
				}
			}
		}
	}
}

addEvent(window, "load", NA_navMain);

// ============================================================================== //
// end navigation JS                                                              //
// ============================================================================== //

function NA_search() {
	if(document.getElementById("nav-search"))	{
		var els = document.getElementById("nav-search").getElementsByTagName("INPUT");
		els[0].onfocus = function() {
			if(this.value == "Search") { this.value = ""; }
		}
		els[0].onblur = function() {
			if(this.value == "") { this.value = "Search"; }
		}
		if (els[0].value == "") {
			els[0].value = "Search";
		}
	}
}

addEvent(window, "load", NA_search);

//

function NA_subsidiaries() {
	if(document.getElementById("content-subsidiaries")) {
		var els = document.getElementById("content-subsidiaries").getElementsByTagName("IMG");
		for (var i=0; i<els.length; i++) {
			els[i].onmouseover = function() {
				this.src = this.src.replace("-off", "-on");
			}
			els[i].onmouseout = function() {
				this.src = this.src.replace("-on", "-off");
			}
		}
	}
}

addEvent(window, "load", NA_subsidiaries);

//

function NA_cols() {
	for (var i=0; i<4; i++) {
		if(document.getElementById("col" + i)) {
			document.getElementById("col" + i).onclick = function() {
				expand(right(this.id, 1));
			}
		}
	}
}

addEvent(window, "load", NA_cols);

function fixSiteFooter(){
	try{
		if (document.getElementById("nav-section") && document.getElementById("content") && document.getElementById("siteinfo")){
			var siteinfo=document.getElementById("nav-section").offsetHeight;
			var content=document.getElementById("content").offsetHeight;
			
			var diff = siteinfo - content;
			
			if (diff > 0){
				diff += 50;
				document.getElementById("siteinfo").style.marginTop=diff+"px";
			}			
		}
	}catch (err){	
	}
}
addEvent(window, "load", fixSiteFooter);