// JavaScript Document
function wholesalecheck(num)
{
	var frm = document.forms['buyprod'];
	var counts = 0;
	var n = 0;
	if (frm.elements['prodid[]'] != null)
		{
			if (!Chk_CLK('buyprod','prodid[]')){
					var el = $$('input[id="lesalenum[]"]');
					for(var i=0;i< frm.elements['prodid[]'].length;i++)
					{
						if (frm.elements['prodid[]'][i].checked == true) {
							if (isNumber(frm.elements['lesalenum[]'][i].value)){
								n = parseInt(frm.elements['lesalenum[]'][i].value);
								counts += n;
							}
						}
						if (n == 0) frm.elements['prodid[]'][i].checked = false;
					}

					if (counts == num){
						document.forms['buyprod'].submit();
					}else if (counts > num){
						alert('您選取數量超出此商品組合數量');
					}else{
						alert('您選取數量小於此商品組合數量');
					}
			}else{
				alert('請選擇'+ num +'個合購商品');
			}

		}else{
			document.forms['buyprod'].submit();
		}
		
}
document.observe("dom:loaded", function() {
	var el = $$('input[id="lesalenum[]"]');
	el.each(function(e){
		e.observe('focus', cel);
		e.observe('blur', cel);
	});
});
function cel(e){
				var element = e.element();
				element.select();
				n = parseInt(element.value);
				if (n > 0){
					$('prodid['+element.getAttribute('dmt')+']').checked = true;
					element.value = parseInt(element.value);
				}else{
					$('prodid['+element.getAttribute('dmt')+']').checked = false;
				}	
}