$(document).ready(function() 
{
    $('form').submit(function() { return false; });
    
    $('#_SITENAME').focus();
    
    $("input").keyup(function(e)
    {
        var EnterKey = 13;
        if(!e) var e = window.event;
        if(getCharCode(e) == EnterKey)
        {
            var siteName = $("#_SITENAME").val();
            if(siteName.length == 0)
            {
                alert('Please enter a web address');
                $('#_SITENAME').focus();
            }
            else
            {
                window.location.href = url + '/' + $("#_SITENAME").val();
            }
        }
    })
    
    $("#_GOBUTTON").click(function(e)
    {
        var siteName = $("#_SITENAME").val();
        if(siteName.length == 0)
        {
            alert('Please enter a web address');
            $('#_SITENAME').focus();
        }
        else
        {
            window.location.href = url + '/' + $("#_SITENAME").val();
        }
    });
});

function getCharCode(e)
{
    if (typeof e.charCode == "number" && e.charCode != 0)
    {
        return e.charCode;
    }
        else
    {
        return e.keyCode;
    }
}