validate.js

来自「J2EE独立开发制作」· JavaScript 代码 · 共 15 行

<script language="JavaScript"> 
function validate(form1)
{
    for (i = 0; i < form1.length; i++){
       if( (form1.elements[i].value == "")){
           alert("You must provide a value for the field named: " +
              form1.elements[i].name)
           return false

           }
        }
        return true
}
</script>