function ChangeCharacterWords(word,inputId,validatorId)
   {  
        var words = document.getElementById(inputId).value;               
        var str="";        
        if (words=="")
        {
            document.getElementById(inputId).value=word+" "; 
            if (validatorId != "")
            {
                document.getElementById(validatorId).style.display="none";  
            }
            return;  
        }         
       var regExp=/\s*\S+\s*/g;
       var trimExp=/^\s*(\S+)\s*$/g;
       var testArray=words.match(regExp);
       var flag=0;
       for (var i=0;i<testArray.length;i++)
       {
            if (testArray[i].replace(trimExp,"$1")==word)
            {
                flag=1; 
                continue;
            }           
           if (i == 0) 
           {
                str = testArray[i].replace(trimExp,"$1")+" "; 
           }
           else
           {
                str+=testArray[i].replace(trimExp,"$1")+" ";
           }           
       }
       if (flag==0)
            str+=word+" ";
            
       document.getElementById(inputId).value=str;
       if (validatorId != "")
       {
            document.getElementById(validatorId).style.display="none";  
       }
       return;    
   }