var newWin = null;
function closeWin(){
if (newWin != null){
if(!newWin.closed)
newWin.close();
}
}
function popUp(strURL,strType,strHeight,strWidth) {
closeWin();
var strOptions="";
strOptions="toolbar=no,menubar=no,scrollbars,resizable,location=no,height="+strHeight+",width="+strWidth;
newWin = window.open(strURL, 'newWin', strOptions);
newWin.focus();
}