basket_add.js

很好的传感器学习资料

function checkdata(theForm) {
	
	if (theForm.p_num.value==""){ 
	alert("请您填写你所需的产品数量！");
		theForm.p_num.focus();		
		    return (false);
	}

	if (!isItemNum(theForm.p_num.value)){
		alert("产品数量只能填写数字！");
		theForm.p_num.focus();		
		    return (false);
	}
	
	if (theForm.p_num.value < 1)
	{
		alert("数量不能为负或零!");
		  theForm.p_num.focus();
    			return (false);
    	}

	window.open("/business/basket_insert.asp?sn_num="+theForm.sn_num.value+"&p_num="+theForm.p_num.value+"&city_id="+theForm.city_id.value,"basket","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,left=110,top=100,width=580,height=400");
//        window.close()
//	 theForm.action="basket_insert.asp";
//	 theForm.target="basket";
//	 theForm.submit();
	return false;
}

function isCharsInBag (s, bag)
{  
  var i;
  // Search through string's characters one by one.
  // If character is in bag, append to returnString.

  for (i = 0; i < s.length; i++)
  {   
      // Check that current character isn't whitespace.
      var c = s.charAt(i);
      if (bag.indexOf(c) == -1) 
      	return false;
  }
  return true;
}

//检测是否是数字
function isItemNum(s)
 {
 	if (isEmpty(s))
	{
		alert("请输入产品数量！");
 		return false;
	}
	var validChar = "0123456789"; 
	if (!isCharsInBag(s, validChar))
	{
		alert("您输入的数量" + s +"是无效的，\n\n请输入合法的整数！");
 		return false;
	}
	return true;
 }

function isEmpty(s)
{  
	return ((s == null) || (s.length == 0))
}

function check_all() {
	var i,sn_nums="",p_nums="";
	for(i=1;i<14;i++){
		theForm=document.forms("form"&i);
		if ((document.theForm.sn_num.value !=="")&&(document.theForm.sn_num.checked !=="")&&(!isNaN(document.theForm.p_num.value)))
		{
	    		sn_nums=sn_nums+document.theForm.sn_num.value+",";
	    		p_nums=p_nums+document.theForm.p_num.value+",";
		}
	}
	if (isempty(p_nums)||isempty(sn_nums))
	{
		alert("你没有选择产品!");
		return (false);
	}
	document.form_all.sn_num.value=sn_nums;
	document.form_all.p_num.value=p_nums;
	return (true);
}