I display an image on the screen and when clicked, it is to display an FAQ page

Here is the html code, which when clicked gives an error "object expected". I use the exact code in a diffrent program without any problems

Code:
<td ><img id='obj' src='images/Help2Big.gif'            style='cursor:hand;' alt='Frequently Asked Questions'  onclick="doReq('faq',this.pg);" ></td>
...