Hide some information (pictures/table) on About Us page

Hello all,
I am trying to hide some information (pictures/table) on  About Us page.
<script type="text/javascript">
function load()
{
//alert("onPage is loaded");
document.getElementById("tab1").style.display='none';
document.getElementById("pic1").style.display='none';
document.getElementById("pic2").style.display='none';
}
//alert("onClick button");
function myFunction()
{
document.getElementById("tab1").style.display='none';
document.getElementById("pic1").style.display='none';
document.getElementById("pic2").style.display='none';
}
//alert("onClick button");
function myFunction1()
{
document.getElementById("tab1").style.display='table';
document.getElementById("pic1").style.display='inline';
document.getElementById("pic2").style.display='inline';
}
</script>

It works in  html page . It works in nopcommerce, but immediately restores the page...
What"s wrong?
Thanks in advance

Sorry...everything ok...just deleted my the excess tag <form>  :)