function contact(x) 
{
 flag=true;
 for(i=0;i<x.elements.length;i++)
 {
  s=new String(x.elements[i].name);
  if(s.substr(0,3)=='REQ')
   if(trim(x.elements[i].value)=='')
   {
    flag=false;
    document.getElementById("SPAN"+s.substr(3,s.length-1)).className='red';
   } 
   else
    document.getElementById("SPAN"+s.substr(3,s.length-1)).className='';
 }
 if(flag) document.getElementById("errorcontactform").style.display="none";
 document.getElementById("errorcontactform").style.display="";
 return flag;
}