function win_open(URL,width,height,scrollbars) {
	var str, width, height;
	str = "'toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,copyhistory=no";
	str = str + ",scrollbars=" + scrollbars;
	str = str + ",width=" + width;
	str = str + ",height=" + height+"'";

	var win = window.open(URL,'win',str);
	win.focus();
}