/*
 * gc_calc
 * Cre. 2009/07/16
 * Copyright (c) 2009 Institute of Advanced Communication & Development Co., Ltd. All rights reserved. 
 * http://iacd.jp
 */
	var doc = document;
	var zenary = new Array("０","１","２","３","４","５","６","７","８","９");
	var hanary = new Array("0","1","2","3","4","5","6","7","8","9");
	$("document").ready(function(){
		$(".cart_buy").css("display","none");
	});
function calc1(form){
	str = form.i_cnt.value;
	for (i=0; i< zenary.length; i++) {
		tmpary = str.split(zenary[i]) ;
		str = tmpary.join(hanary[i]) ;
	}
	form.i_cnt.value = str.replace(/[^0-9]/g,"");
	if (form.i_cnt.value == ''){
		form.price.value = 0;
		form.cart_buy.style.display='none';
	}
	else if (eval(form.i_cnt.value) == 0){
		form.price.value = 0;
		form.cart_buy.style.display='none';
	}
	else if (eval(form.i_cnt.value) > eval(form.item_limit.value)){
		form.price.value  =  "在庫不足";
		form.cart_buy.style.display='none';
	}
	else{
		form.price.value  =  Math.ceil(eval(form.item_price.value) * eval(form.i_cnt.value));
		form.cart_buy.style.display='block';
	}
}
function calc_submit(){
	doc.CALC1.submit();
}