js表单验证

[g375636389]

<input id="id1" type="text" /><br />
<input id="id2" type="password" /><br />
<input id="id3" type="password" /><br />
<input id="Button1" type="button" value="提交" onclick="but_click();" />
当点击提交按钮的时候多id1,id2,id3 进行验证.1,输入不能为空;2必须正确输入;

[hookee]

<script>
function but_click(){
  var f = document.forms[0];
  var t1 = document.getElementById("id1").value;	
  var t2 = document.getElementById("id2").value;	
  var t3 = document.getElementById("id3").value;	
  t1 = t1.replace(/(^\s+|\s+$)/g,"");
  t2 = t2.replace(/(^\s+|\s+$)/g,"");
  t3 = t3.replace(/(^\s+|\s+$)/g,"");
  if(t1=="" || t2=="" || t3==""){
    alert("不能为空");
    return false;
  }
  if(t2!=t3){
    alert("密码不相等");
    return false;
  }
  f.submit()
}
</script>
<form action="xxx" method="post">
	<input id="id1" type="text" /> <br />
    <input id="id2" type="password" /> <br /> 
    <input id="id3" type="password" /> <br /> 
    <input id="Button1" type="button" value="提交" onclick="but_click();" /> 
</form>

[BeenZ]

var id1=document.getElementById("id1");
var id2=document.getElementById("id2");
var id3=document.getElementById("id3");
if(id1.innerText&&id2.innerText&&id3.innerText){
  alert("null")
  return false;
}
if(id1.innerText!="xxxxx"&&id2.innerText!="xxxx"&&id3.innerText!="xxx") return false
  return true

[g375636389]

[Quote=引用 1 楼 hookee 的回复:]
HTML code<script>function but_click(){var f= document.forms[0];var t1= document.getElementById("id1").value;var t2= document.getElementById("id2").value;var t3= document.getElementById("id3").value;  ¡­
[/Quote]
如果我id1,id2,id3 都已经有onblur 事件验证了...怎么直接调用

[Bird_fro]

<input id="id1" type="text" onblur="but_click()" /> <br />
<input id="id2" type="password" onblur="but_click()" /> <br />
<input id="id3" type="password" onblur="but_click()" /> <br />

[hookee]

<script>
function b1(){
  var t1 = document.getElementById("id1").value;	
  t1 = t1.replace(/(^\s+|\s+$)/g,"");
  if(t1==""){
    alert("不能为空");
    return false;
  }
  else return true;
}
function b2(){
  var t2 = document.getElementById("id2").value;	
  t2 = t2.replace(/(^\s+|\s+$)/g,"");
  if(t2==""){
    alert("密码1不能为空");
    return false;
  }
  return true;
}
function b3(){
  var t3 = document.getElementById("id3").value;	
  t3 = t3.replace(/(^\s+|\s+$)/g,"");
  if(t3==""){
    alert("密码2不能为空");
    return false;
  }
  return true;
}

function but_click(){
  var f = document.forms[0];
  var t2 = document.getElementById("id2").value;	
  var t3 = document.getElementById("id3").value;
  b = b1() & b2() & b3();
  if(!b) return false;
  if(t2!=t3){
    alert("密码不相等");
    return false;
  }
  f.submit()
}
</script>
<form action="xxx" method="post">
	<input id="id1" type="text" onblur="b1()"/> <br />
    <input id="id2" type="password" onblur="b2()"/> <br /> 
    <input id="id3" type="password" onblur="b3()"/> <br /> 
    <input id="Button1" type="button" value="提交" onclick="but_click();" /> 
</form>