function check_quantity(name, val) {

	var form_num = eval("document."+name+"."+val).value;
	if(isNaN(form_num) || form_num =="" || form_num==0) {
		eval("document."+name+"."+val).value=1;
		return;
	}
	pricecheck(name, val);
}
// ¼ýÀÚ¸¸ ÀԷ°¡´É
function pricecheck(name, str) {
	var val="", nval="";
	var fo = eval("document."+name+"."+str);
	var price = fo.value;
	var priceln = fo.value.length;

	for(var i=0;i<priceln;i++) { 
		val =price.charAt(i);
		if(!(val>=0 && val<=9)) {
			nval += val.replace(val,"");
				
		} else {
			nval += val; 
		}
	}
	eval("document."+name+"."+str).value = nval;
}

// form action  ¼ö·®º¯°æ-1
function Newquantity(vals) {
	var keys = vals;

	if(eval(keys)==1) {
		document.form_cart.action = "cart_item_update.php";
		document.form_cart.Mtype.value = "UP";
		document.form_cart.submit();

	} else if(eval(keys)==2) {
		/*
		document.form_cart.action = "cart_view.html";
		document.form_cart.method = "get";
		document.form_cart.AddType.value = "NOW";
		document.form_cart.submit();	
		*/
		var string = document.form_cart.return_query.value;
		location.href="cart_view.html?AddType=NOW&return_query="+string;

	} else if(eval(keys)==3) {
		var string = document.form_cart.return_query.value;
		//location.href="cart_view.html?AddType=NOW&Guest=ok&return_query="+string;
		Popup('../Infocorner/protection_popup.html','AddType=NOW&Guest=ok&return_query='+string,0,0, 'yes'); //Á¤Ã¥ ¶ç¿ì±â
	}

}