<!--
function Check(keyword) {
   var st_num, key_len;
   st_num = keyword.indexOf(" ");	
   while (st_num != -1) {
      keyword = keyword.replace(" ", "");
      st_num  = keyword.indexOf(" ");
   }
   key_len=keyword.length;
   return key_len;
}  

function validEmail(email) {
   invalidChars = " /:,;><";
   for (i = 0 ; i < invalidChars.length; i++) {
      badChar = invalidChars.charAt(i);
      if (email.indexOf(badChar,0) > -1) {
         return false;
      }
   }
   atPos = email.indexOf("@",1);
   if (atPos == -1) {
      return false;
   }
   if (email.indexOf("@", atPos+1) > -1) {
      return false;
   }
   periodPos = email.indexOf(".",atPos); 
   if (periodPos == -1) {
      return false;
   }
   if(periodPos+3 > email.length) {
      return false;
   }
   return true;
} 
-->