function show(url,width,height){
	var xPos,yPos,params;
	xPos = (screen.width - width)/2;
	yPos = (screen.height - height)/2;
	params = "'resizeable=no,scrollbars=yes,width=" + width + ",height=" + height + ",left=" + xPos + ",top=" + yPos + "'";
	MM_openBrWindow(url,'newWindow',params);
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}