confirmation with spinner and anchor

My php page has a spinner on it:

<script> 
function spin( obj ) 
{ 
var spinner = document.getElementById( obj ); 
var spinner_content = document.getElementById( obj+"_body" ); 
if ( spinner_content.style.display == 'block' ) // this line
{ 
spinner.innerHTML = '+'; 
spinner_content.style.display = 'none'; // this line
spinner_content.style.height = '0px'; 
spinner_content.style.margin = '0px'; 
} 
else 
{ 
spinner.innerHTML = '-'; 
spinner_content.style.display = 'block'; // this line
spinner_content.style.height = 'auto'; 
spinner_content.style.margin = '20px 0px 20px 50px'; 
} 
} 
</script>

Code (markup):

I have an anchor at start_spinner:

<?php start_spinner( 'up_order_spin', "Table Order Form" );?>
										<a name="tableorderform"></a>
										<table align="center">

Code (markup):

When my users click submit...:

<input type="submit" name="submit" class="formTextbox" value="Submit" onclick="go_there()">

Code (markup):

...a box pops up that asks if they want to fill out an order form...

<SCRIPT language="JavaScript">
<!--
function go_there()
{
 var where_to= confirm("Did you fill out the Table Order Form?");
 if (where_to== false)
 {
   window.location="http://www.mysite.net/mypage2.php#tableorderform";
 }
 else
 {
  window.location="http://www.mysite.net/projects.php";
  }
}
//-->
</SCRIPT>

Code (markup):

...no matter what they click they are taken to projects.php.

What I need is: If they click "OK" they go to projects.php, but if they click "Cancel" then stay at mypage2.php and the spinner opens for them.