use javascript calling code behind function.

Question

hi. 

i want to use javascript code then call to code behind method. im trying some thing but something is wrong not working . anybody can help me ?

<script type="text/javascript">
function checkMe() {
alert("hello");
PageMethods.Counting;
}
function onComplete(result, response, content) {
alert(result);
}
</script>

 when i  click to <a href=""> tag how to call the below function ? 

string.Format(@"<a href='{0}' onclick='checkMe();' runat='server'>{1}</a>", newlink.NavigateUrl, dt.Rows[contID]["FAQTITLE"].ToString()) ;

and then my code behind method what i want to call 

 

protected void Counting(object sender, EventArgs e)
{
    //my code is here
}