function HideContent(d) {
    if(d.length < 1) { return; }    
      document.getElementById(d).style.display = 'none';    
      //new Effect.BlindUp(document.getElementById(d));
 }

function ShowContent(d) {

    if(d.length < 1) { return; }    
    document.getElementById(d).style.display = 'block';    
    //new Effect.BlindDown(document.getElementById(d));
}

function ReverseContentDisplay(d) {
    if(d.length < 1) { return; }
    
    if(document.getElementById(d).style.display == 'none') { 
      //new Effect.BlindDown(document.getElementById(d));    
      document.getElementById(d).style.display = 'block'; 
    }else{ 
      document.getElementById(d).style.display = 'none';    
      //new Effect.BlindUp(document.getElementById(d));
    }
}
function clearText(thefield){
  if (thefield.defaultValue==thefield.value)
    thefield.value = '';
}