// JavaScript Document
var ChildWin = null;
function launchWin(url, w, h) {
	var l = (window.screen.width-w)/2;
	var t = (window.screen.height-h)/2;
	if (l < 0) {
		l = 0
	};
	if (t < 0) {
		t = 0
	};
	windowprops = "left="+l+",top="+t+",width="+w+",height="+h+", scrollbars=1, resizable=0";
	if (ChildWin && !ChildWin.closed){
		ChildWin.close();
		ChildWin = null;
	} 
	if (ChildWin && ChildWin.closed){
	 ChildWin = window.open(url, "ChildWin", windowprops);
     return;
	}
	ChildWin = window.open(url, "ChildWin", windowprops);
}