$(document).ready(function(){
   $(".wpcf7-submit").click(function(event){
		
		if ($("#email1").val() == "") {
			alert("Please enter your email address");
			return false;
		}
		
		if ($("#email1").val() != $("#email2").val()) {
			alert("The email addresses entered don't match");
			return false;
		}
   
   });
 });