var popup;
var disclaimer;
function openPopup(file,title,width,height){
if(popup){
popup.close()
}
popup=window.open('','popup','toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width='+width+', height='+height+'');void(0);
popup.document.open();
popup.document.write("");
popup.document.write("");
popup.document.write(title);
popup.document.write("");
popup.document.write('') ;
popup.document.write("");
popup.document.write("![]("+file+")
");
popup.document.close();
var clientw=screen.availWidth;
var clienth=screen.availHeight;
popup.moveTo((clientw-width)/2,(clienth-height)/2);
}