Uncaught TypeError: Cannot read property 'ajax' of undefined?

jQuery(".push").live("click", function(e){


										$.ajax({
										   type: "POST",
										   url: "template-lk.php",
										   data: "name=&location=",
										   success: function(msg){
										     alert(  msg );
										   }
										});

										
										//console.log (typeof obj);

										return false;
									});