/* Name: chk_order_qty.js */

function isNumber(inputStr)
{
	
	for (var iCount = 0; iCount < inputStr.length; iCount++)
	{
		var oneChar = inputStr.charAt(iCount);
		
		if (oneChar < "0" || oneChar > "9")
			return false;
	}
	
	return true;
}   

/* This function checks for the following -

   - If the Part No. field is NULL and the Quantity field has a value.
   - If the Quantity field has an invalid value (0, -ve values, characters) given 
     the Part No. field has a value.
*/
   
function CheckOrderQty(inputStr) 
{
	var err=false;

	if ((inputStr.length <= 0) || (isNumber (inputStr) == false) || (inputStr == 0))
		return false
	else
		return true;
}