var myArray = new Array("david","alex","jeffery","daniel","jones");

trace(myArray.length);
trace(myArray.join(", "));

myArray.splice(2, 1)

trace(myArray.length);
trace(myArray.join(", "));

function randomBetween(min, max) {
 return (min+Math.floor(Math.random()*(max-min+1))); 
}
var placer = randomBetween(0, myArray.length-1);

var selection = myArray[placer];
trace(selection);