<!-- Begin
/****************************************************************************************
'* Javascript Functions                                                                 *
'* Last Update: 07-19-09                                                                *
*****************************************************************************************/


function ChkQty (obj1) {  
// check any qty limits on items
	var maxqty = 20;
	var minqty = 5;
	var selIndex = obj1.quantity.selectedIndex;
	var qty = obj1.quantity.options[selIndex].text;

	if (isNaN (qty)) {
		alert ("Enter a valid number between " + minqty + " and " + maxqty + " for quantity!");
		return false;
	}
	
	qty = parseInt(qty);

	if (qty > maxqty) {
		alert ("To order more than " + maxqty + " books please contact Doug Alderson directly.");
		return false;
	}
	if (qty < minqty) {
		alert ("You must order at least " + minqty + " books to qualify for wholesale rate");
		return false;
  	}
	
	// set shipping for quantity

	if(qty == 5) { obj1.shipping.value = 4; }
	if(qty >5 && qty <11) { obj1.shipping.value = 6; } 
	if(qty >10 && qty <16) { obj1.shipping.value = 8; } 
	if(qty >15 && qty <21) { obj1.shipping.value = 10; } 

	return true;
}
// End -->