var linkSet=false;

function OpenFeedback(){
  if (! linkSet){
    var feedbackform=window.open('feedback.asp','WindowFeedBack','status=no,height=400,width=440,resizable=no,left=150,top=50,screenX=150,screenY=100,scrollbars=yes');
  }
}

function HitLink()
{
  linkSet=true;
}