Edit Event Participant - Cleanup Redundant Jscript Includes

When custom fields are used to extend "Participant" - the HTML output for Add / Edit Participant contains duplicate defines for showBlocks and hideBlocks, dupe invokes of on_load_init_blocks and duplicate popUp() invokes. We should try to clean this up.

path = civicrm/contact/view/participant?reset=1&action=add&cid=102&context=participant (also action=update)

• • • • EXAMPLE HTML Output w/ duplicated jscript function calls ****
        <script type="text/javascript">
        var showBlocks = new Array('Event_Volunteer_Info');
        var hideBlocks = new Array('Event_Volunteer_Info_show');

on_load_init_blocks( showBlocks, hideBlocks );

function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=640,height=420,left = 202,top = 184');");
}

</script>

<script type="text/javascript">
var showBlocks1 = new Array('Event_Volunteer_Info');
var hideBlocks1 = new Array('Event_Volunteer_Info_show');

on_load_init_blocks( showBlocks1, hideBlocks1 );
</script>

<script type="text/javascript">

function popUp(URL)

{ day = new Date(); id = day.getTime(); eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=640,height=420,left = 202,top = 184');"); }

</script>
</td>
</tr>
<tr> <td> </td>

<td><input class="form-submit default" name="_qf_Participant_next" value="Save" type="submit" />         <input class="form-submit" name="_qf_Participant_cancel" value="Cancel" type="submit" /></td>
</tr>
</table>

</div>
</fieldset>