/* open a helper window */
function OpenAtlasWindow(idx,name,x,y) {
   helpURL=idx;
   windowName=name;
   width=x;
   height=y;
   windowDef="toolbar=no,width="+width+",height="+height+",left=20,top=20,toolbar=no,location=no,copyhistory=no,directories=no,status=no,scrollbars=yes,resizable=no,menubar=no";
   msgWindow=window.open(helpURL,windowName,windowDef)
   msgWindow.focus();
   return false;
}