HTML javascript checkbox issue

[narsibvl]

Here is a piece of html code

[HTML]<form name="package_information" id="package_information" method="post" enctype="multipart/form-data""& lt;"
<tr>
<td><input type="checkbox" name="FormListName" value="31" />Adobe client-server form</td>
</tr>
<tr>
<td><input type="checkbox" name="FormListName" value="32" />Adobe XDP form</td>
</tr>
<tr>
<td><input type="checkbox" name="FormListName" value="29" />Dispute Form (pff)</td>
</tr>
<tr>
<td><input type="checkbox" name="FormListName" value="30" />SSA Form SSA-L996 (pff)</td>
</tr>
<tr>
<td><input type="checkbox" name="FormListName" value="22" />Tax form 1040a (1)</td>
</tr>
<tr>
<td><input type="checkbox" name="FormListName" value="23" />Tax form 1040a (2)</td>
</tr>
<tr>
<td><input type="checkbox" name="FormListName" value="28" />Tax form 1040a User Verification Required</td>
</tr>

.
.
.
.

<input type="button" value="Publish" onClick="javascript:doPackagesubmit();">&nbsp;
</form>
[/HTML]

Here are the relevent javascript functions

function getFormList()
{
        var formListStr = null;
        var firstIteration = true;
        var formList = document.getElementById("package_information").getElementsByTagName("FormListName");
        if (eval(formList))
        {
            if (eval(formList.length != "undefined"))
            {
                if (formList.length == 0)
                {
                     alert("Need to select atleast one form for a explicit package" );
                     switchPage('page4'); switchnav('nav4');
                }     
 
                for (i = 0 ; i < formList.length; i++)
                {
                    if ((formList[i].checked))
                    {
                        if (firstIteration)
                        {
                            formListStr = formListStr+formList[i].value+","
                            firstIteration = false;
                        }else
                        {
                            formListStr = formListStr+formList[i].value;
                        }    
                    }
                }
            }else
            {
                if (formList.checked == true)
                {
                    alert("Only one checkbox is checked");
                }else
                {
                    alert("formList is not checked");
                }
            }    
        }else
        {
            alert("forms list does not exist");
        }    
 
        return formListStr;
}

Javascript function "doPackageSubmit" calls "getFormList".

Now here is my problem, irrepective of how many of the checkboxes i check i always get the message "Need to select atleast one form for a explicit package". What is that ?

[acoder]

Moved from Articles section.

You don't need to use getElementsByTagName. Just use document.form.FormListName to access the checkboxes.

[narsibvl]

I have tried that too with the same results.

[narsibvl]

Dunno if this makes a difference but the checkbox buttons are created at runtime. (This is part of jsp code).

[acoder]

Does

document.getElementById("package_information").FormListName

not work? If you do want to use getElementsByTagName, then use "input" (the tag name) instead and then check for the type (checkbox). See link