我無法更改標題屬性

Question

任何人都可以告訴我這個功能有什麼問題嗎？一切工作，因爲它應該直到我試圖改變標題屬性，最後一行。它不會改變並具有原始價值。 Im使用標題attr作爲鼠標通知

P.S. Javascript/jQuery不是我的C＃開發人員的強項，所以請你好。

function doAlerts(serverDateTime) 
{ 
$('.alertText').each(function() 
{ 
    var getCell = $(this).find("td").eq(0).html() 

    var respCount = $(this).find(".messageCount").val(); 
    var callerId = $(this).find(".messageCallerID").val(); 
    var getTitleText = $(this).attr('title'); 

    //get date and title from row off page 
    var createDate = $(this).find('.createdDate').html(); 
    var titleText = $(this).attr('title').replace('Expected SLA : ', '').replace('Expected Response : ', ''); 
    var title = "Ticket No : " + getCell + "<br>" + getTitleText.replace(' - ','<br>') + "<br>"; 

    var slaResult = warning(titleText, serverDateTime, 20, "SLA"); 
    var expResult = warning(titleText, serverDateTime, 60, "Exp"); 

    if(slaResult) 
    { 
     $(this).addClass('warning'); 
     $(".warning").css("background-color", "#FFdddd"); 
     title = title + "<br>There is less than 20mins before expected 4 hour SLA.<br>"; 
    } 
    if(expResult) 
    { 
     $(this).addClass('warning'); 
     $(".warning").css("background-color", "#FFdddd"); 
     title = title + "<br>There is less than 60mins before expected 24 hour response.<br>"; 
    } 
    if(respCount) 
    { 
     if(respCount > 5) 
     { 
      $(this).addClass('warning'); 
      $(".warning").css("background-color", "#FFdddd"); 
      title = title + "<br>There has been " + respCount + "messages. A phone call is required to the client<br>"; 
     } 
    } 
    $(this).attr("title", title); 
}); 

}