How to pass value from main window to pop up window?

Question

I want to pass a value from the main window (1st form) to pop-up window (2nd form). The first form is of name booking.jsp and 2nd form is of name Fund_booking.jsp. I am using window.showModalDialog to open the window. I think, I have written right code in main window to pass the value but even then I am not able to get it on pop-up window. I am not even able to display an alert on pop-up window saying "hi" by writing a function on save Button in pop-up window. The code is as follows:
On booking.jsp:
<script>
function popup()
var aForm;
aForm = D_requisition_id.options[D_requisition_id.selectedIndex].text;
\\Here I have captured value from a drop down box in my main window form and assigned it to the variable.
alert(aForm);
var myObject =new Object();
myObject.Brandcode = aForm;
alert(myObject.Brandcode);
window.showModalDialog("Fund_booking.jsp",myObject,"dialogHeight:400px;dialogWidth:420px;");
</script>
<button name="B_FundBooking" tabIndex=4 style='POSITION:absolute;LEFT:393;TOP:292;WIDTH:100;height:24;BACKGROUND-COLOR:buttonface' onClick ="popup()">Fund Booking</button>
On Fund_booking.jsp:
<SCRIPT>
var oMyObject = window.dialogArguments;
var sBrandcode = oMyObject.Brandcode;
alert(sBrandcode);
</SCRIPT>
Even the following alert is not getting displayed in pop-up window;
<script>
function ValidateData()
alert("Hi");
</script>
<button name="B_Save" tabIndex=1 style='POSITION:absolute;LEFT:255;TOP:315;WIDTH:75;height:24;BACKGROUND-COLOR:buttonface' onClick ="ValidateData()">Save</button>
I am using DIV instead of frames in my both forms. I just want to get that value in my pop-up window to write a query based on which data will get displayed in my table of pop-up window.
Plz help me to solve this problem.

Answer 1

just attach the value with its url for example
String names="java";
<a href="# onclick="window.open('file.jsp?name='+names);"></a>