// JScript File

function validateNumeric(e,len)
{
    //e = e | window.event;
    
    var keynum = 0;
    var keychar;
    var numcheck;
    var target   = e.target || e.srcElement;
    
    if(window.event) // IE
        keynum = e.keyCode;
    else if(e.which) // Netscape/Firefox/Opera
        keynum = e.which;

    if (keynum < 31)
        return true;
        
    if (keynum < 48 || keynum > 57)
        return false;
    
    if (len && target.value.length >= len)
        return false;
            
    return true;

}