function selectFeatTab(){
 var tabBut1 = document.getElementById("featScreenshots");
 var tabBut2 = document.getElementById("featScreencasts");
 var tab1 = document.getElementById("featTabScreenshots");
 var tab2 = document.getElementById("featTabScreencasts");
 if(tab1.style.display == 'none'){
 tab2.style.display = 'none';
 tab1.style.display = 'block';
 tabBut2.className = '';
 tabBut1.className = 'active';
 }else{
 tab1.style.display = 'none';
 tab2.style.display = 'block';
 tabBut1.className = '';
 tabBut2.className = 'active';
 }
}