Navigation & passing on values & javascript

Question

Hi experts,
I'm quite new to BSP so I apologize in advance if my question seems silly...
I have to modify a CRM screen so that it calls a web service from a popup window. I've created the popup window calling the web service, and it appears when the user hits the TAB button after filling in the "firstname" and "lastname" fields in the CRM screen. This was done with javascript.
I want to know what I need to add to my code CRM screen code and where so that these two values be passed on the BSP popup page that I call. Also what do I need to add to the popup BSP page to be able to use these parameters.
Here is the code of the firstname and lastname inputfields that generates the popup action:
<crmic:gridLayoutCell columnIndex="<%=lv_c4 %>" rowIndex="<%=lv_r2 %>" colSpan="<%=lv_colspan2 %>"><crmic:inputField id = "ContactName2"
                    width     = "100%"
                    maxlength = "35"
                    focus     = "TRUE"
                    value     = "//SearchContactAsBP/ContactName2" /></crmic:gridLayoutCell>
<crmic:gridLayoutCell columnIndex="<%=lv_c6 %>" rowIndex="<%=lv_r2 %>" colSpan="<%=lv_colspan3 %>"><zcrmic:zinputField id = "ContactName1"
                    width     = "100%"
                    maxlength = "35"
                    CALL_JS_FUNCTION_ON_TAB = "TRUE"
                    JS_FUNCTION_NAME = "callWebService()"
                    value     = "//SearchContactAsBP/ContactName1" /></crmic:gridLayoutCell>
And the javascript function callWebService() is the following:
<script language="JavaScript">
    function callWebService(){
        window.open('http://server.sap.corp:50000/sap/bc/bsp/sap/z_bsp_popup/default.htm'
,'WebService','resizable=yes,height=350,width=300,dependent=yes,status=1');
</script>
The two BSP apps are not in the same package, is this important ? (the CRM screen is in a temp package and the BSP popup page is in a Z package)
Thanks, points will be rewarded
Micol

Answer 1

in z_bsp_popup/default page add two page attributes
1. first_name type string (check the auto check box)
2. last_name type string (check the auto check box)
change the javascript function which calls the popupt to pass first name and last name.
window.open('http://server.sap.corp:50000/sap/bc/bsp/sap/z_bsp_popup/default.htm?first_name=<firstname>&last_name=<lastname>'
now when you call the popup the first_name and last_name variables in the popup will automatically get the values which you have passed via url.
Raja