// JavaScript Document
function changeCategory(selectedCategory){
	document.selector.category.value=selectedCategory;
	document.selector.itemNo.value="1";
	document.selector.submit();
}
				
function changeItem(selectedItem){
	document.selector.itemNo.value=selectedItem;
	document.selector.submit();
}

function incItem(){
	var selectedItem = document.selector.itemNo.value;
	document.selector.itemNo.value=parseInt(selectedItem)+1;
	document.selector.submit();
}
	
function decItem(){
	var selectedItem = document.selector.itemNo.value;
	document.selector.itemNo.value=parseInt(selectedItem)-1;
	document.selector.submit();
}