function preload() {
	pics=new Array("button_apartment_over.png","button_availability_over.png","button_email_over.png","button_location_over.png","button_rates_over.png");
	for(x=0; x<pics.length; x++) {
		y=new Image();
		y.src="images/buttons/"+pics[x];
	}
}

function rollover(imgname,imgsrc) {
	document.images[imgname].src="images/buttons/"+imgsrc;
}

function popupwindow(filename) {
	
	window.open(filename,"LILLWindow","width=438,height=300,scrollbars=no,toolbar=no,location=no,status=no,menubar=no,resizable=yes");
}