$ektron(document).ready(function() { 
	$ektron('.search_input').click(function(){
		$ektron('.search_input').keydown(function(e){
				if (e.keyCode == 13) {
				__doPostBack('btnSearch','');
				return false;
			}
		});
		});
	
	//
		$ektron('.search_input').keypress(function(){
		$ektron('.search_input').keydown(function(e){
				if (e.keyCode == 13) {
				__doPostBack('btnSearch','');
				return false;
			}
		});
		});
});