Hiding the menus and some part of drop down based on the user logged in

<div class="nav">
<ul>
<li><a href="Home.aspx">Home</a></li>
<li><a href="ATR Retrieve.aspx">Retrieve ATR</a></li>
<li><a href="#">Renewal Reports</a>
<ul>
<li><a href="Count_Report.aspx">Report Summary</a></li>
<li><a href="Trans main.aspx">Overall Report</a></li>
<li><a href="Renewal reports.aspx">Log Report</a></li>
<li><a href="SAP_writing.aspx">Sequence Report</a></li>
<li><a href="Products.aspx">Products Report</a></li>

</ul>
</li>
<li><a href="uploadsrt.aspx">Upload to SRT</a></li>
<li><a href="Pass change.aspx">Password Reset</a></li>

am using these type of menus there are 3 types of roles based on that i should display these menus or hide some of menus

thanks in advance