function getObj(objID){if(document.getElementById){return document.getElementById(objID);}
    else if(document.all){return document.all[objID];}
    else if(document.layers){return document.layers[objID];}
    else{alert('Browser Doesn\'t Support DOM')}
}


function SetAd(){var s = new Date();if (getObj('n50').style.display=="none"){ getObj('n50').style.display="";getObj('bebo').style.display="none";}else{getObj('bebo').style.display="";getObj('n50').style.display="none";}}


function UpdateCycle() {SetAd();setTimeout("UpdateCycle()",2000);}


function SetAd(){var s = new Date();if (getObj('n50').style.display=="none"){getObj('n50').style.display="";getObj('bebo').style.display="none";}else{getObj('bebo').style.display=""; getObj('n50').style.display="none";}}


function UpdateCycle(){SetAd();setTimeout("UpdateCycle()",2000);}