function updateAmount(itemnumber,productpriceid,theproductpriceid) {
	
	var productamount;
	
	productamount=eval('document.forms["basketform"].a' + itemnumber + '.value');
	
	document.location='basket.asp?update=' + productpriceid + '&amount=' + productamount + '&productpriceid=' + theproductpriceid;
	 
}