[HTML] Need to combine on-click drop down and check boxes

[HowdeeDoodee]

I need to combine the input from checkboxes with a hyperlink embedded in an on-click drop down box. At the present time I do not have any checkboxes in my htlm drop down code. This means the user only goes to the following link based upon what is in the link below. However, I do not want this.

<select name="values" onChange="if(this.options[this.selectedIndex].value) window.location.href=this.options[this.selectedIndex].value;"> 
<option>FIND TOPICS STARTING WITH "A"</option>
<option value="[URL unfurl="true"]http://www.websiteaddress.com/XC/FindTopic.php?TY=ON&TE=ON&SeeTopic=A">A</option>[/URL]
</select>

When a user clicks on the above drop down the user is taken to the following page:

[URL unfurl="true"]http://www.websiteaddress.com/XC/FindTopic.php?TY=ON&TE=ON&SeeTopic=A[/URL]

What I want to do is make check boxes available so a user can choose between TY and TE and have the TY=ON or the TE=ON added on to or appended to the following hyperlink

[URL unfurl="true"]http://www.websiteaddress.com/XC/FindTopic.php?SeeTopic=A[/URL]

Therefore, I want the user to be able to click on the TY checkbox, the user will hit the drop down entry and get sent to the following page with the TY checkbox checked.

[URL unfurl="true"]http://www.websiteaddress.com/XC/FindTopic.php?SeeTopic=A&TY=ON[/URL]

Or, if the user clicks on the TE checkbox, the user will be sent to the following page.

[URL unfurl="true"]http://www.websiteaddress.com/XC/FindTopic.php?SeeTopic=A&TE=ON[/URL]

Or, if the user clicks on both the TE checkbox and the TY checkbox, the user will be sent to the following page.

[URL unfurl="true"]http://www.websiteaddress.com/XC/FindTopic.php?SeeTopic=A&TE=ON&TY=ON[/URL]

Thank you in advance for any replies.

Edited to show code rather than html links

 

[Vragabond]

Is there a php question in here? You will do this with client-side scripting, most likely JavaScript. You will get much better answers there:

http://tek-tips.com/threadminder.cfm?pid=216