日期:2014-05-16 浏览次数:20462 次
function pd() {
var a = document.getElementById("l").value; //先确保这个id在你的页面存在啊
for (i = 0; i < a; i++) {
if (document.getElementById("d" + i).value == "") {
alert("数量不能为空")
//break
return; //要return 才阻止程序继续往下走
}
}
//this.form1.submit()
document.form1.action = "PI.ASP"; //直接设定form的action 提交到asp页面
document.form1.submit(); //提交form
//window.location.href = "PI.ASP"
}
------解决方案--------------------
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
</head>
<body style="width:120px;">
<form action="PI.ASP" method="post" name="form1">
<table>
<tr>
<td><input type="text" id="l1"></td>
<td><input type="text" id="l2"></td>
</tr>
</table>
<input type="button" onclick="pd()" value="click me">
</form>
<script type="text/javascript">
function pd(){
var inps = document.getElementsByTagName('input'),
len = inps.length,is_true = true;
for(var i = 0; i < len; i++){
if(inps[i].value == '' && inps[i].type == 'text'){
is_true = false;
}
}
if(is_true){
document.form1.submit();
}else{
alert('文本框不能为空')
}
};
</script>
</body>
</html>