I have in a webpage this code, which clikking into the flyingtree.gif picture, made with a dinamic code, send me to a index.phtml:

<FORM action=index.phtml method=post>
<INPUT type=image alt=""
src="TELE2Internet E-cards_file/flyingtree.gif"
border=0 name=EcardImgId_592e4641>
<IMG height=96 src="TELE2Internet E-cards_file/t.gif" width=5 border=0>

HOW CAN I AUTOCLICK WITH MY WEBBROWSER CONTROL?
Help me, Thank you very much