var ioWindow;

function openWindow(url,x,y)
	{
	if (ioWindow) {if (!ioWindow.closed) ioWindow.close()}
	/*h=screen.availHeight-30;
	w=screen.availWidth-30;
	t=(h-y)/2; if (t<0) t=0;
	u=(w-x)/2; if (w<0) w=0;*/
	t=10;
	u=10;
	ioWindow = window.open(url,"popup",'width='+x+',height='+y+',left='+u+',top='+t+',scrollbars=yes,resizeable=yes');
	ioWindow.focus();
}