Javascript inside jsp

Hi,
is it possible to call a javascript function or can i add events like onClick, onLoad inside the body tag when the response content type is set to "response.setContentType("application/vnd.ms-excel")" ??
Currently the issue is none of the events or javascript function calls are getting executed as soon as i set the contenttype as above. so what should i do to call the script function or call some event. Since i am novice in this particular field please explain the solution in a simple way.
Advance thanks,
Yours sincerely
Raghu

This is the setting i am making to open the file as an excel sheet.
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition", "filename=" + "abc.xls");
response.setHeader("Cache-Control","no-cache");
response.setHeader("Pragma","no-cache");
response.setDateHeader("Expires",0);
response.addHeader("Cache-control", "no-store");
response.addHeader("Cache-control", "max-age=0");
Is this all right?? And after this i write the contents to the excel sheet and then i need to call a javascript function to close the child window.
Thanx

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