<body style="height:100%;width:100%;">
<div class="wrap" style="height:23px;">
<p id="MyClick" style="display:none">Привет!</p>
</div>
<a href="#" onclick="Clk();return false;">Клик!</a>
<script type="text/javascript">
document.body.onclick = function (){document.getElementById("MyClick").style.display="none"};
function Clk(){
setTimeout('document.getElementById("MyClick").style.display="block"',100);
}
</script>
</body>