// commented lines do image swapping on top nav.
sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			className = this.className;
			this.className+=" sfhover";
			//alert (this.className);
			//switchImage('topnav_' + className,'on');
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			//switchImage('topnav_' + this.className,'off');
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);


var imgDir = "images/";
function simplePreload()
{
    var args = simplePreload.arguments;
    document.imageArray = new Array(args.length);
    for(var i=0; i<args.length; i++)
    {
        document.imageArray[i] = new Image;
        document.imageArray[i].src = imgDir + args[i];
    }
}

function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=1,statusbar=1,menubar=1,resizable=1,width=1024,height=600,left = 440,top = 212');");
}

function toggle_class(ele,cssClass) {
	//console.log('ele=' + ele + ' cssClass=' + cssClass);
	if (ele != '' && cssClass != '') {
		var eleObj = document.getElementById(ele);
		if(eleObj) {
			var myClass = eleObj.className;		
			if(!myClass) {
				eleObj.className = cssClass;
			} else if(myClass != cssClass) {
				eleObj.className = cssClass;
			} else {
				//console.log('Not empty class');
				eleObj.className = '';
			}		
		}
	}
}