JavaScript ต้องการให้เปิด Popup ตาม Checkbox อะครับ ไม่ทราบต้องทำยังไง

<script language="javascript">
function selValue(w,h,scroll)
{
	var val = '';
	for(i=1;i<=form.hdnLine.value;i++)
	{
		if(eval("form.page"+i+".checked")==true)
		{
			LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
			TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
			settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
			setTimeout(window.open(eval("form.page"+i+".value"),i,settings),1000);
		}
	}
}
</script>

<form id="form" name="form" method="post" action="#">
  <table width="500" style="border:1px solid #06F;" cellspacing="0" cellpadding="0">
    <tr>
    	<td bgcolor="#FFFFFF" height="150">&nbsp;&nbsp;
        <input type="checkbox" name="page1" id="page1" value="table.php" />&nbsp;:&nbsp;
        <input type="text" name="text" id="text" value="ตาราง" style="width:440px;" readonly /><br/>&nbsp;&nbsp;
        <input type="checkbox" name="page2" id="page2" value="student.php" />&nbsp;:&nbsp;
        <input type="text" name="text" id="text" value="นักเรียน" style="width:440px;" readonly /><br/>&nbsp;&nbsp;
        <input type="checkbox" name="page3" id="page3" value="groups.php" />&nbsp;:&nbsp;
        <input type="text" name="text" id="text" value="กลุ่มสาระการเรียนรู้" style="width:440px;" readonly /><br/>&nbsp;&nbsp;
        <input type="checkbox" name="page4" id="page4" value="rally.php" />&nbsp;:&nbsp;
        <input type="text" name="text" id="text" value="ชุมนุม" style="width:440px;" readonly />
        </td>
    </tr>
    <tr>
      <td bgcolor="#0066FF"><div><center>
      <input type="submit" name="install" value="ติดตั้ง" style="width:80px;" onClick="JavaScript:selValue('500','200','no');" />&nbsp;&nbsp;
      <input type="button" name="back" value="กลับ" style="width:80px;" onclick="JavaScript:window.location='../register.php'" />
      </center></div></td>
    </tr>
  </table>
</form>