<script language=javascript>
function callasp(id){
window.location.href='a.asp?id='+id;
}
</script>
<input type=button onclick="javascript:callasp(1);">
function callasp(id){
window.location.href='a.asp?id='+id;
}
</script>
<input type=button onclick="javascript:callasp(1);">