Problem in the jsp, jstl and java script.

Question

Hi Friends,
I am having one jsp which allows user(Could you please refer to code which is written in my jsp) to enter his username and password i want to get the password in the same jsp and want it to be passed to the custom tag without sending request to the server.Please give me an idea.Thanks in advance.
This is the text field which allows a password.
<INPUT type="password" name="password" size="10" maxlength="29" onblur="chkpwd()" onfocus="this.autocomplete=false" >
and this is the anchor tag which refers as LOGIN BUTTON
<IMG height=19 src="images/submit1.gif" width=106 border=0>
when user clicks on LOGIN BUTTON i am calling one javascript function LOGIN(PASSWORD:) to check the validation if the validation is success then i want to get the password in the same function which is entered .
This is ok i can get the password by "document.formName.password.value" then i need to pass this value to the jstl tag which is our own tag as shown below.
<prefix:tagname value="PASSWORD which is having in the javascript variable".
Please help me .
Quick reply is thankfull.
Edited by: bharathpolanki on Apr 20, 2008 1:55 AM
Edited by: bharathpolanki on Apr 20, 2008 2:55 AM

Answer 1

that's correct. You can use the below code for AJAX request.
<script type="text/javascript">
var httpObject = getHTTPObject();
//create XMLHttpRequest object
function getHTTPObject() {     
     var xmlhttp;
     if (window.XMLHttpRequest) // if Mozilla, Safari etc
          xmlhttp = new XMLHttpRequest();
     else if (window.ActiveXObject){ // if IE
          try {
               xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
          catch ( e ){
               try{
                    xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
               catch ( e ){}
     return xmlhttp;
//define the function to send the request
function sendRequest(){
    var currDesc = document.getElementById("description").value;
    var URL =  "manageMaintAction.do"; //action mapping in your struts-config
    var queryString = "currDesc="+escape(currDesc); //get the currDesc value in your action class like request.getParameter("currDesc")
    httpObject.open( "Post", URL, true );
    httpObject.onreadystatechange = cbFn;
    httpObject.setRequestHeader( "Content-Type", "application/x-www-form-urlencoded");
    httpObject.send(queryString);
//callback fn
function cbFn() {
    if (httpObject.readyState == 4)
         if (httpObject.status == 200)
          var result = httpObject.responseText;
          alert(result);
</script>