function OnBookOnlineMouseOver(clientId, hoverImagePath) {
        
        var el = document.getElementById(clientId);
        el.src = hoverImagePath;
        var src;
        var browser = navigator.appName;
        var b_version = navigator.userAgent;

        var version = parseFloat((new RegExp("MSIE ([0-9]{1,}[.0-9]{0,})")).exec(b_version)[1]);

        if ((browser == "Microsoft Internet Explorer")
  && (version <= 6)) {
            src = el.src;
            el.src = "/DesktopModules/TmBookOnline/blank.gif"; 
            el.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='scale')";
        }
    }
    function OnBookOnlineMouseOut(clientId, outImagePath) {
        var el = document.getElementById(clientId);
        el.src = outImagePath;
        var src;
        var browser = navigator.appName;
        var b_version = navigator.userAgent;

        var version = parseFloat((new RegExp("MSIE ([0-9]{1,}[.0-9]{0,})")).exec(b_version)[1]);

        if ((browser == "Microsoft Internet Explorer")
  && (version <= 6)) {
            src = el.src;
            el.src = "/DesktopModules/TmBookOnline/blank.gif"; 
            el.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='scale')";
        }
    }