function email_hider (c1, c2, c3) {
  var out = ""
  if (c1 != "" && c2 != "") {
    out = out + '<a href="'+'mail'+'to'+':'+c1+'&#64;'+c2+'">';
    if (c3 != "") {
      out = out + c3;
    } else {
      out = out + c1 + '@' + c2;
    }
    out = out + '</a>';
  } else {
    out = out + '<a href="/contact.php">contact us</a>';
  }
  return out;
}
function checkRequiredField(fieldObj){
  if(!$(fieldObj)){
    return true;
  }else if(Element.hasClassName(fieldObj,'required') && $F(fieldObj).strip()==''){
    return false;
  }else{
    return true;
  }
}
function checkRequiredFields(f){
  var ok=true;
  els = Form.getElements(f);
  for(i=0;i<els.length;i++){
    if(!checkRequiredField(els[i])){
      alert('Required information missing.');
      ok=false;
      break;
    }
  }
  return ok;
}
var newwindow;
function newcewin(url)
{
	newwindow=window.open(url,'name','location=0,height=550,width=780,left=25,top=25,resizable=yes,scrollbars=yes');
	if (window.focus) {newwindow.focus()}
}