var PopWidth=400;
var PopHeight=200;
var PopLeft = (window.screen.width-PopWidth)/2;
var PopTop = (window.screen.height-PopHeight)/2;
var newWin = null;
function popUp(strURL, strType, strHeight, strWidth) {
	if (newWin != null && !newWin.closed)
		newWin.close();
	var strOptions = "";
  var popLeft = (window.screen.width-strWidth)/2;
  var popTop = (window.screen.height-strHeight)/2;
	if (strType == "console")
		strOptions="resizable,height="+strHeight+",width="+strWidth+
		",top="+popTop+",left="+popLeft;
	if (strType == "fixed")
		strOptions="status,height="+strHeight+",width="+strWidth+
		",top="+popTop+",left="+popLeft;
	if (strType == "elastic")
		strOptions="toolbar,menubar,scrollbar"+
		",resizable,location,height="+strHeight+",width="+strWidth+
		",top="+popTop+",left="+popLeft;
	newWin = window.open(strURL, 'newWin', strOptions);
	newWin.focus();
}