function check_keys(e){
    var keyid = (window.event) ? event.keyCode : e.which;
    if (keyid==13) return false;
}
function txtsearch_keyup(e){
    var keyid = (window.event) ? event.keyCode : e.which;
    if(keyid==13) go_search();
}
function go_search(){
    var q = document.getElementById("txtSearch").value;
    if(q.length>1){
        document.location="Search.aspx?q="+q;
    }
}