function InitForm()
{
    var currentWidth = 0;
    
    if (window.innerWidth != currentWidth)
    {   
        currentWidth = window.innerWidth;
        var orient = currentWidth == 320 ? "profile" : "landscape";
        document.body.setAttribute("orient", orient);
        setTimeout(scrollTo, 100, 0, 1);
    }
}

function isDigit(s)
{
    var patrn=/^[0-9]{1,20}$/;
    if (!patrn.exec(s)) return false;
    return true;
}