function setImg(obj, img){
    obj.src = img;
}

  
function trimAll(sString) 
        {
            while (sString.substring(0,1) == ' ')
            {
                sString = sString.substring(1, sString.length);
            }
            while (sString.substring(sString.length-1, sString.length) == ' ')
            {
                sString = sString.substring(0,sString.length-1);
            }
            return sString;
        }
        
function isValidEmail(strEmail){
  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
  
   // search email text for regular exp matches
    if (strEmail.search(validRegExp) == -1) 
   {
      alert('A valid e-mail address is required.\nPlease change and retry.');
      return false;
    } 
    return true; 
}