// JavaScript Document
function popup(url,name,properties,width,height,center) {
if (center == 1) {
	windowproperties = properties + ",width="+width+",height="+height+",top="+(screen.availHeight - height) / 2+",left="+(screen.availWidth - width) / 2+""; 
} else {
	windowproperties = properties + ",width="+width+",height="+height+",top="+(screen.availHeight - height) / 2+",left="+(screen.availWidth - width) / 2+""; 
}
window.open(url,name,windowproperties);
}