<%...@ page contentType="text/html; charset=UTF-8"%><script language="javascript">...function click1(type,id) ...{ if(type =='' && id =='' )...{ return false; }else...{ if(type=='test')...{ var tmp=window.open('page.jsp?id=75','','width=200,height=100,resizable=yes,scrollbars=yes,status=yes,toolbar=no,menubar=no,location=no'); tmp.focus(); }else...{ return false; } }} </script><div><button name="button1" onclick="click1('test',1);">Test</button></div>