function checkName(iptValue){

  var temp,validChars,flag,flag1

  flag = true

  // SET THE STRING OF ALLOWED CHARACTERS
  validChars1 = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./ "
  validChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./ "

  temp = iptValue

  // CHECK FOR NULL STRING

  if (temp.length == 0){
  return false;
       }
  else{
      // check if the string contains atleast one character
      for (i=0; i<temp.length; i++){
         if (validChars1.indexOf(temp.charAt(i)) >= 0){
           flag1 = true
           break
        }
      }
      
     if (flag1){ 

     // LOOP THROUGH THE STRING

     for (i=0; i<temp.length; i++){

       // IF THE STRING CONTAINS INVALID CHARS BREAK & ALERT

        if (validChars.indexOf(temp.charAt(i)) < 0){
           flag = false
           break
        }
       
     }  
     
     if (flag)
        return true;
     else
        return false;
        
     }
     
    else
       return false;    
  }    
}