function openWin(url, width, height, winname) {
	params      = "toolbar=0,";
	params     += "location=0,";
	params     += "directories=0,";
	params     += "status=0,";
	params     += "menubar=0,";
	params     += "scrollbars=0,";
	params     += "resizable=0,";
	params     += "top=10,";
	params     += "left=10,";

	params += "width="+width+",";
	params += "height="+height;

	win = window.open(url, winname, params);
	win.opener.name = "opener";
}