<script>
function keyDown(e)
{
if(!e)
{
e=window.event;
}
var keyValue = e.keyCode;
if(e.shiftKey && keyValue==50)
{
alert('@')
}
}
function keyDown(e)
{
if(!e)
{
e=window.event;
}
var keyValue = e.keyCode;
if(e.shiftKey && keyValue==50)
{
alert('@')
}
}
document.onkeyup = keyDown;</script>