ARRAY EXAMPLE
HTML
<input type="button" id="btnSearch" value="Pick One" onclick="RandomName();" />
<p id="ShowRandomName" ></p>
JavaScript
function RandomName()
{
var Names= new Array('Victor','Joseph','Miguel','Jason','Cassandra','Mark','Johnathan','Robert','James','Henry');
var random = Names[Math.floor(Math.random() * Names.length)];
document.getElementById("ShowRandomName").innerHTML=random;
}