// JScript File

function validateQuantity(txtQuantityID)
{
    var valueToCheck = document.getElementById(txtQuantityID).value;
    var validNumber = new RegExp("^[0-9]+$");
    var errMsg = "";
    
    if (validNumber.test(valueToCheck) == false)
        errMsg ="Error : \n \n Quantity is not valid";
    
    else if (parseInt(valueToCheck) == 0)
        errMsg ="Error : \n \n Quantity is zero";
        
    if (errMsg != "")
    {
        window.alert(errMsg);
        return false;
    }
    
    else return true;
}

function numbersOnly(e)
{
    var key
    var keyCode
    var numberTest = new RegExp("[0-9]");
    
    if(window.event) // IE
    {
        keyCode = e.keyCode;
        
    }
    else if(e.which) // Netscape/Firefox/Opera
    {
        keyCode = e.which;
    }
    
    key = String.fromCharCode(keyCode)
    
    if (keyCode != null && keyCode != 8)
    {
        return numberTest.test(key)
    }
    
    return true;
}