Accessing HTMLB checkbox in javascript

Question

Hi,
I have the following scenario:
1) jsp "main.jsp" has a checkbox with id="chkBoxId"
2) In this "main.jsp" at the end, there is a jsp include
   including another jsp "buttons.jsp" - which contains a
   SUBMIT button.
3) On this SUBMIT button, I am calling a javascript
   function "check()" in the "onClientClick" attribute.
4) In this "check()" function I want to access the
   checkBox (present in "main.jsp")
Now when I try doing this using the following code in the check() function, it gives me a "Undefined is null or not an object".
function check(chkBoxId) {
var funcName = htmlb_formid+"_getHtmlbElementId";
func = window[funcName];
var chkBox1 = eval(func(chkBoxId));
// The checkbox is obtained
if (chkBox1)
  alert("Not Checked");
Plzz help me !!!
regards,
Jitendra

Answer 1

HI,
U can write the javascript function in the header tag or create a .js file in which u write the javascript code.
the javascript code can be like
function ValidateForm()
if(document.form1.s_material.value=="")
alert("enter material");
return false;
return true;
where form1 is id of form and s_material is iD of input field.
In your coding for button onClientClick like :
<htmlb:button  id="s_but_submit"
                                   width="20"
                                   onClick="submit"
                                   onClientClick="if(!ValidateForm(this))htmlbevent.cancelSubmit=true;"
Regards,
Siddhartha