function checkrequired(which) {
  var pass=true;
  if (document.images) {
    for (i=0;i<which.length;i++) {
      var tempobj=which.elements[i];
      if (tempobj.title != "") {
        if (((tempobj.type=="text"||tempobj.type=="textarea") && tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s" && tempobj.selectedIndex==0) || tempobj.value=='Enter email address') {
          pass=false;
          break;
        }
      }
    }
  }
  if (!pass) {
    shortFieldtitle=tempobj.title;
    alert(""+shortFieldtitle+" is required.");
    return false;
  }
  else
    return true;
}