Function Not Defined in JavaScript

[johnnyb1726]

When I run my webapp Mozilla is telling me that addRowInnerHTML is undefined. This only occurs when I try to write the results on a different jsp. If I write the results on index.jsp I do not get this problem. Here is my .js file.

function makeHttpRequest(url, return_xml)
{
   var http_request = false;
 
   if (window.XMLHttpRequest) { // Mozilla, Safari,...
       http_request = new XMLHttpRequest();
       if (http_request.overrideMimeType) {
           http_request.overrideMimeType('text/xml');
       }
   } else if (window.ActiveXObject) { // IE
       try {
           http_request = new ActiveXObject("Msxml2.XMLHTTP");
       } catch (e) {
           try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
           } catch (e) {}
       }
   }
 
    var environment = document.foo.cboEnvironment.value;
    alert(environment);
    var tradeID = document.foo.txtTradeID.value;
    alert(tradeID);
    var locationType = document.foo.location.value;
    alert(locationType);
    //window.location = 'response.jsp'
 
 
   if (!http_request) {
       alert('Unfortunatelly you browser doesn\'t support this feature.');
       return false;
   }
   http_request.onreadystatechange = function() {
       if (http_request.readyState == 4) {
           if (http_request.status == 200) {
               if (return_xml) {
                   eval(callback(http_request.responseXML)); 
               } else {
                   eval(callback(http_request.responseText)); 
               }
           } else {
               alert('There was a problem with the request.(Code: ' + http_request.status + ')');
           }
       }
   }
 
   http_request.open('post', url, true);
   http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
   http_request.send('environment='+ environment+'&tradeID=' + tradeID + '&locationType=' + locationType);
}
 
 
function callback(responseText)
{
    var temp = new Array();
    temp = responseText.split('\t');
    alert(responseText);
    if( !(responseText.indexOf('#')!=-1) ){
        var row1 = null;
        var row2 = null;
        for(var i = 0; i < temp.length; i++){
 
            if(temp[i] == 'Location:'){
                row1 = temp[i + 1];
            }
            else if(temp[i] == 'Found:'){
                row2 = temp[i + 1];
            }
 
            if(row1 != null && row2 != null){
                addRowInnerHTML('Results', row1, row2);
                row1 = null;
                row2 = null;
            }
 
        }
 
        makeHttpRequest('./Process', false);
    }
    else{
        alert('no more');
    }
 
}
 
function addRowInnerHTML(tblId, row1, row2)
{
  var tblBody = document.getElementById(tblId).tBodies[0];
  var newRow = tblBody.insertRow(-1);
  var newCell0 = newRow.insertCell(0);
  newCell0.innerHTML = row1;
  var newCell1 = newRow.insertCell(1);
  newCell1.innerHTML = row2;
}
 
function submitTrade(url, return_xml){
 
    window.location = 'response.jsp';
    makeHttpRequest(url, return_xml);
}
 

The alerts are there for debugging.

Thank you for all the help,
John

[acoder]

Welcome to TSDN!

What do you mean by 'different jsp'? If you're going to make an Ajax call, you're staying on the same page. If the table is not present on the page, then you're going to get errors.

[johnnyb1726]

Thank you for the reply,

I have an index.jsp and when i click submit i want to go to another jsp to display the results. Is this possible or should I just go to a .html file?

Thank you,
John

[epots9]

Thank you for the reply,

I have an index.jsp and when i click submit i want to go to another jsp to display the results. Is this possible or should I just go to a .html file?

Thank you,
John

it is possible, but if u go to another page u make the ajax call useless. since ur going to another page on the second page just get the parameters that are passed to it.

[johnnyb1726]

it is possible, but if u go to another page u make the ajax call useless. since ur going to another page on the second page just get the parameters that are passed to it.

Thank you for the response.

I guess I am not sure what you are talking about. How does it make the ajax call useless? What do you mean by just get the parameters that are passed to it?

Thank you,
John

[acoder]

Thank you for the response.

I guess I am not sure what you are talking about. How does it make the ajax call useless? What do you mean by just get the parameters that are passed to it?

Thank you,
John

An ajax call is made on the same page to get a response from the server without refreshing the page.

Remember Ajax should not be used in every possible scenario. In your case, a normal form submit and the action jsp page (response.jsp) dealing with the submitted values is just what you need.