Hi dear,
Here i have pasted the code for achieving your goal.
For this we need to include the jQuery library file to out HTML.
Ex :-
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="jquery-2.0.3.js"></script>
<script type="text/javascript">
$(function () {
dothis();
});
function dothis() {
alert('I want this');
$('#about')[0].click();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<a href="AboutUs.aspx" id="about">click here</a>
</div>
</form>
</body>
</html>
Hoping this will be of help to you, please have a look into it let me know if it worked for you.
So that i can help you more on this regard if required.