function ValidNewSletter()
   {
   var element;
   if(document.getElementById('LeftMenu_NewsLetter_txtSubscriber'))
   {
        element=document.getElementById('LeftMenu_NewsLetter_txtSubscriber');
   }
   if(document.getElementById('ctl00_LeftMenu1_NewsLetterRight1_txtSubscriber'))
   {
        element=document.getElementById('ctl00_LeftMenu1_NewsLetterRight1_txtSubscriber');
   }
    if(element.value=='')
    {
            alert('Please enter email address.');
            return false;
    }
    else if(element.value=='Enter your E-Mail Address')
    {
            alert('Please enter E-Mail Address.');
            element.focus();
            return false;
    }
    else
        return true;
   }
   function clear_text()
   {    
         if(document.getElementById('LeftMenu_NewsLetter_txtSubscriber') && document.getElementById('LeftMenu_NewsLetter_txtSubscriber').value=="Enter your E-Mail Address")
         {
               document.getElementById('LeftMenu_NewsLetter_txtSubscriber').value="";
         }
        if(document.getElementById('ctl00_LeftMenu1_NewsLetterRight1_txtSubscriber') && document.getElementById('ctl00_LeftMenu_NewsLetter_txtSubscriber').value=="Enter your E-Mail Address")   
       {
            document.getElementById('ctl00_LeftMenu1_NewsLetterRight1_txtSubscriber').value="";
        }    
        return false;
  }
       
    function clear_NewsLetter(myControl)
    {
        if(myControl && myControl.value=="Enter your E-Mail Address")
           myControl.value="";
    }
    
    function ChangeNewsLetter(myControl)
    { 
    if(myControl!=null && myControl.value=='')
            myControl.value="Enter your E-Mail Address";
    }
   function Change()
   {  
         if(document.getElementById('LeftMenu_NewsLetter_txtSubscriber')!=null && document.getElementById('LeftMenu_NewsLetter_txtSubscriber').value=='')
            document.getElementById('LeftMenu_NewsLetter_txtSubscriber').value="Enter your Email address";
        if(document.getElementById('ctl00_LeftMenu1_NewsLetterRight1_txtSubscriber')!=null  && document.getElementById('ctl00_LeftMenu_NewsLetter_txtSubscriber').value=='')
        {
            document.getElementById('ctl00_LeftMenu1_NewsLetterRight1_txtSubscriber').value="Please enter your E-Mail Address";
            document.getElementById('ctl00_LeftMenu1_NewsLetterRight1_txtSubscriber').focus();
        }
            return false;
   }