var newWin = null;
function popUp(strURL, strType, strHeight, strWidth, strTop, strLeft) {
 if (newWin != null && !newWin.closed)
   newWin.close();
 var strOptions="";
 
 if (strType=="console")
   strOptions="resizable,height="+
     strHeight+",width="+strWidth+",top="+strTop+",left="+strLeft;
     
 if (strType=="fixed")
   strOptions="resizable=0"+
   "height="+strHeight+",width="+strWidth+",top="+strTop+",left="+strLeft;
     
 if (strType=="elastic")
   strOptions="toolbar,menubar,scrollbars,"+
     "resizable,location,height="+
     strHeight+",width="+strWidth+",top="+strTop+",left="+strLeft;
     
 newWin = window.open(strURL, 'newWin', strOptions);
 newWin.focus();
}