$(document).ready(function() {
    $("#SearchNow").bind("click", function() { ShowSearchResults() });
    $("#txtInput").keypress(function (e) {
     if (e.which == 13){
	ShowSearchResults();
        return false;
      }
     });
});

function ShowSearchResults()
{
document.location="/ResultPage.aspx?query=" + $("#txtInput").val();
}