function include_js(script_filename) {
    document.write('<' + 'script');
    document.write(' language="javascript"');
    document.write(' type="text/javascript"');
    document.write(' src="' + script_filename + '">');
    document.write('</' + 'script' + '>');
}
function include_css(css_filename) {
    document.write('<' + 'link');
    document.write(' rel="stylesheet"');
    document.write(' type="text/css"');
    document.write(' href="' + css_filename + '">');
}
function SetOpacity(elem, opacityAsInt)
{
    var opacityAsDecimal = opacityAsInt;

    if (opacityAsInt > 100)
        opacityAsInt = opacityAsDecimal = 100;
    else if (opacityAsInt < 0)
        opacityAsInt = opacityAsDecimal = 0;

    opacityAsDecimal /= 100;
    if (opacityAsInt < 1)
        opacityAsInt = 1; // IE7 bug, text smoothing cuts out if 0

    elem.style.opacity = (opacityAsDecimal);
    elem.style.filter  = "alpha(opacity=" + opacityAsInt + ")";
}