var newWin = null;
function closeWin(){
if (newWin != null){
if(!newWin.closed)
newWin.close();
}
}
function popUp(strURL,strType,strHeight,strWidth) {

closeWin();
var strOptions="";
if (strType=="console") strOptions = "menubar=0,location=0,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();
}