A simple example of changing the form action in the drop-down box

A simple example is provided.

Using Js.

 

Form code

 

1	<form  action=""method="post" id="formRole">

 

 

 

 

Type drop-down list

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<select name="type" id="type"onchange="changeAction()">      <option value="B" > b</option>      <option value="C" >c</option>       <option value="D" >d</option>       <option value="E" >e</option>     </select>

 

 

 

 

JS Code

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<script type="text/javascript">functionchangeAction(){        // Alert ("Submit" + document. getelementbyid ("type"). value );  var str=document.getElementById("type").value;  if(str==‘B‘){    document.getElementById("formRole").action="www.yq1012.com";  }else if(str=="C"){      document.getElementById("formRole").action="www.yq1012.com";  }else if(str=="D"){      document.getElementById("formRole").action="www.yq1012.com";  }else if(str=="E"){      document.getElementById("formRole").action="www.yq1012.com";  }else{      document.getElementById("formRole").action="";  }  alert("Submit"+ document.getElementById("formRole").action);  }</script>