To Display the 'Last Modified' message in JSP

I have to display the "Last Modified" auto save message in a portlet page at the right end corner using JSP I have used this below coding but I'm not getting the solution can anyone help me with the solution?

I have written one function inside the script:

function saveProjectDetails(id){

         var rowNo = id.split("-")[1].split("Project")[1];
         var colNo = id.split("-")[0].split("txtWeek")[1];
     var projcode=dojo.byId("txtProject"+rowNo+"-Code").value;
     var weekId = dojo.byId("txtWeek"+colNo).value;
     var year = '<c:out value="${allocateResBean.headerBean.year}"/>';
    var actualHrs = dojo.byId(id).value;
    var userId = '<c:out value="${allocateResBean.userid}"/>';     
    dojo.xhrGet({     
    url:"<portletx:resourceURL><portlet:param name='action' value='assignusersdetails' /></portletx:resourceURL>",
    content: {userid:userId,wkid:weekId,projectCode:projcode,yr:year,ahrs:actualHrs},  
       load: function(data){
            var element = dojo.byId("savedNotification");
        var time = new Date(); 
        element.innerHTML="Last Saved:"+time.toDateString()+" "+time.toLocaleTimeString();  
    }
});
}

-->In JSP I've called the function in the 'On Change' in the below code

<tr>
<td align="center">
<input type="text" size="3" maxlength="2" name="txtWeek2-Project${rowNo}-Actual" id="txtWeek2-Project${rowNo}-Actual" 
value="<c:out value='${project.week2.actualHours}'/>"  onKeyPress="return validateCharacter();"
onKeyUp="return calculateTotalHrs(this.id);" onFocus="changeStyle(this.id);" onChange="saveProjectDetails(this.id);"/>
</td>
</tr>

-->And in outside of the table row I've used div function.

<div id="savedNotification" style="float:right">

</div>

-->I'm using the text box named Actual Hours when i change anything in that textbox 'Last Modified' Message should be displayed