function checkOrder(form){
	form.action = 'payment.asp';
        form.submit();
}
function changeOrder(form){
        if(isNaN(Math.abs(form.Amount.length))){
                if(!trim(form.Amount.value)){alert('請輸入訂購數量');form.Amount.focus();return false;}
                if(isNaN(Math.abs(form.Amount.value))){alert('訂購數量必須是數值');form.Amount.focus();return false;}
                if(form.Amount.value < 1){alert('訂購數量不能小於1');form.Amount.focus();return false;}
        }else{
                for(i=0;i < form.Amount.length;i++){
                        if(!trim(form.Amount[i].value)){alert('請輸入訂購數量');form.Amount[i].focus();return false;}
                        if(isNaN(Math.abs(form.Amount[i].value))){alert('訂購數量必須是數值');form.Amount[i].focus();return false;}
                        if(form.Amount[i].value < 1){alert('訂購數量不能小於1');form.Amount[i].focus();return false;}
                }
        }
        form.action = 'api/order_change.asp';
        form.submit();
}
function cancelOrder(form,PK){
        if(confirm('確定要刪除此產品!!')){
        	form.delPK.value = PK;
        	form.action = "api/order_cancel.asp";
                form.submit();
        }else{
                return false;
        }
}
function delOrder(form,PK){
        if(confirm('確定要刪除所有的產品!!')){
        	form.delPK.value = PK;
        	form.action = "api/order_del.asp";
                form.submit();
        }else{
                return false;
        }
}
function trim(instr){
        return instr.replace(/^[\s]*/gi,'').replace(/[\s]*$/gi,'');
}
function isNumeric(key){
       if(key < 48 || key > 57){
               window.event.keyCode = 0;
       } 
}