function openwindow( url,w,h )
	{
	var newWin = window.open( url, "kraftWindow", "menubar=1,resizable=1,width="+w+",height="+h );
	if( !newWin )
		{
		newWin = window.open('',"kraftWindow", "menubar=1,resizable=1,width="+w+",height="+h);
		newWin.location.href = url;
		}
	}