<!--
function checkempty(object_value)
{
   s = object_value;
   if(s=="")
      return false;
   return true; 
} 
function checkparam(object_value,allowed)
{
   vpos = allowed;
   var z;
   z = object_value.length;
   if (isNaN(object_value.length)){
    z = 1;
   }
   for (x = 0 ; x < z ; x++){
      y = String(object_value);
      tam = y.length;
      tam1 = vpos.length;
      pres = 0
      for (p = 0 ; p < tam ; p++)
      {
         pedaco = y.substring(p,p + 1)
         for (u = 0 ; u < tam1 ; u++)
         {
           pedaco1 = vpos.substring(u,u + 1)
           if (pedaco == pedaco1)
           {
             pres++
           }
         }
      }
      if (pres != tam)  
      { 
        return false;
        break;
      }
   }
   return true;
}
function checkpassword(object1_value,object2_value)
{
 if(object1_value!=object2_value)
   return false;
 return true; 
}
function checkemail(object_value)
{
 s = object_value;
 if(s=="")
    return false; 
 var i = 1;
 var sLength = s.length;
 while((i < sLength) && (s.charAt(i) != "@"))
      {
       i++;
      } 
 if(( i >= sLength) || (s.charAt(i) != "@"))
    return false;
 else
    i += 2;
 while ((i < sLength) && (s.charAt(i) != "."))
       {
        i++;
       } 
 if ((i >= sLength - 1) || (s.charAt(i) != ".")) 
    return false;
 else 
    return true; 
}
//-->