$(document).ready(function() {
  $("#enwsAddEmail").val('Váš email zde..');
  $("#enwsAddEmail").focus(function() {
	 if (this.value == "Váš email zde..") {
		  this.value = "";
	   }   
    });
    
  $("#enwsAddEmail").blur(function() {
	 if (this.value == "") {
		  this.value = "Váš email zde..";
	   }
	  });
    
    
  });