var newWin = null;

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