function open_window(url,window_width, window_height) {
    if( window_width == null ) window_width = 300;
    if( window_height == null ) window_height = 50;
    var winl = (screen.width / 2)  - 250;
    var wint = (screen.height / 2) - 210;
	var win = window.open(url, "window","toolbar=no, width="+window_width+", height="+window_height+" ,status=no, scrollbars=no, resizable=no, menubar=no, left="+winl+", top="+wint);
}

function ld(theurl) {
	document.getElementById("url").href = theurl;
	document.getElementById("url").click();
}