function ValidateNumeric(e) 
{
    var iKeyCode = 0; 
    if(window.event) // IE
    {
        iKeyCode = e.keyCode;
        if ((iKeyCode > 57 || iKeyCode < 48) && iKeyCode != 8) 
        {
            e.returnValue = false; 
        }
    }
    else // Netscape/Opera/Firefox
    {
        iKeyCode = e.which;
        if (iKeyCode > 57 || iKeyCode < 48) 
        {
            // allow backspace key
            if(iKeyCode != 8)
            {
                return false;
            }
        }
    }
}

function Space(e) 
{
    var iKeyCode = 0; 
    if(window.event) // IE
    {
        iKeyCode = e.keyCode;
        if (iKeyCode == 32) 
        {
            e.returnValue = false; 
        }
    }
    else // Netscape/Opera/Firefox
    {
        iKeyCode = e.which;
        if (iKeyCode == 32) 
        {
            // allow backspace key
            if(iKeyCode != 8)
            {
                return false;
            }
        }
    }
}