function buyItem(elName){
	var details = document.getElementById(elName).value;
	
	var strings = details.split(":");
	var itemSize = "Size: "+strings[0];
	var itemPrice = strings[1];	

	document[elName].item_name.value = document[elName].item_name_original.value+" - "+itemSize;
	document[elName].amount.value = itemPrice;	
	
	return true;
	}