//debugger;
if (Sys != undefined && Sys != null && Sys.Browser != null)
{
    Sys.Browser.WebKit = {}; //Safari 3 is considered WebKit
    if (navigator != null && navigator.userAgent != null)
    {
        if (navigator.userAgent.indexOf('WebKit/') > -1)
        {

            Sys.Browser.agent = Sys.Browser.WebKit;

            Sys.Browser.version = parseFloat(navigator.userAgent.match(/WebKit\/(\d+(\.\d+)?)/)[1]);

            Sys.Browser.name = 'WebKit';

        }
    }
}