function limitChars(textarea, limit,informationDiv)
{
     var text = textarea.value; 
     var textlength = text.length;
     var info = document.getElementById(informationDiv);
     
     if(textlength > limit)
     {
        textarea.value = text.substr(0,limit);
        info.innerHTML = 'You cannot write more than '+ limit + ' characters';                
         return false;
     }
     else
     {
        info.innerHTML = 'You have ' + (limit - textlength) + ' characters left';
         return true;
     }

}