function MM_preloadImages() { //v3.0
 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
   var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
   if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

//pop up that takes different parameters
// this will center the window within the browser and bring the window to focus
var winProps;
function popUpProps(url, windowName, width, height, props)
{
	var left = (screen.width - width) / 2;
	var top = (screen.height - height) / 2;
	var propsCentered = "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top + props;

	if(winProps == null || winProps.closed) {
		winProps = window.open(url, windowName, propsCentered);
		winProps.focus();
	} else {	
		winProps.close();
		winProps = window.open(url, windowName, propsCentered);
		winProps.focus();
	}
}