function popup(theURL, height, width) {
	if (height == undefined && width == undefined){ 
		window.open(theURL,'popupwin','width=670,height=550,scrollbars=yes,resizable=yes,toolbar=no,menubar=no');
	}
	else {
		window.open(theURL,'popupwin','width='+width+',height='+height+',scrollbars=yes,resizable=yes,toolbar=no,menubar=no');
	}
}

function rolloverInit() {
	//alert('rolloverInit');
	//alert('document.images.length: ' + document.images.length);
	for (var i=0; i<document.images.length; i++) {
		if (document.images[i].parentNode.tagName == "A") {
			setupRollover(document.images[i]);
		}		
	}
	//alert('done');
}

function setupRollover(thisImage) {	
	//alert('setupRollover');
	thisImage.outImage = new Image();
	thisImage.outImage.src = thisImage.src;
	thisImage.onmouseout = rollOut;
	
	thisImage.overImage = new Image();
	thisImage.overImage.src = "css/skin/" + thisImage.id + "-over.png";
	thisImage.onmouseover = rollOver;
}

function rollOver() {
	//alert('rollOver: ' + this.overImage.src);
	this.src = this.overImage.src;
}

function rollOut() {
	this.src = this.outImage.src;
}