var oImgPath = new Object();
oImgPath.leftnav = "images/left_nav/";
oImgPath.mainnav = "images/home/";
oImgPath.shared = "images/shared/";


//------
//IMAGE ROLLOVERS
function imgOn(imgName) { document[imgName].src = eval(imgName + "_on.src"); }
function imgOff(imgName) { document[imgName].src = eval(imgName + "_off.src"); }

//IMAGE CACHING
function cacheImg(name,src,rollover,type){
	if (!type) var type = "gif";
	if (rollover==true){
		eval(name + "_off =  new Image");
		eval(name + "_off.src = \'" + src + name + "_off." + type + "\'");
		eval(name + "_on =  new Image");
		eval(name + "_on.src = \'" + src + name + "_on." + type + "\'");
	} else {
		eval(name + " = new Image");
		eval(name + ".src = \'"+src+name+"."+type+"\'");
	}
}


//------
//POPUP WINDOW

function popWindow( url, name, width, height, options, x, y ){
	if ( ! options ) options = "scrollbars=yes,menubar=yes,toolbar=yes,location=yes,status=yes,resizable=yes";
	if ( ! name ) name = "_default";
	newWin = window.open( url, name, "width=" + width + ",height=" + height + "," + options );
	newWin.focus();
}


// OPEN WINDOW
function openWindow( url, name, width, height, options, x, y ){
	if ( ! width ) width = 640;
	if ( ! height ) height = 420;
	var xpos = (screen.availWidth - x) / 2;
	var ypos = (screen.availHeight - y) / 2;
	if ( ! options ) options = "scrollbars=yes,menubar=yes,toolbar=yes,location=yes,status=yes,resizable=yes";
	if ( ! name ) name = "_default";
	var newWin = window.open( url, name, "width=" + width + ",height=" + height + "," + options );
	newWin.moveTo(xpos,ypos);
}