arr = new Array(
["Featured Article Click Link: <a href='articles/philip-evangelist.html' class='nav'>Philip the Evangelist - Unabridged</a>"],
["Featured Article Click Link: <a href='articles/sinners-prayer.html'class='nav'>The Sinner's Prayer</a>"],
["Featured Article Click Link: <a href='articles/how-we-know.html'class='nav'>How Do We Know We Know Him?</a>"],
["Featured Article Click Link: <a href='articles/baptism-water.html'class='nav'>Water Baptism</a>"]
// no comma at the end of last index 
);

var lasturl="0"; 
function completeimage(){   var randNum = getRand();
document.getElementById("arr").innerHTML = arr[randNum][0]; 
setTimeout('completeimage()',7000);  }  
function getRand () {   var rnum;   
var id=Math.round(Math.random()*(arr.length-1));  
 rnum = id;   if (rnum==lasturl) { rnum = getRand(); }   
lasturl=rnum;   return rnum;  }