var impulses = new Array(
  {alt:'Keyworth Bank', url:'http://www.keyworthbank.com', src:'/Portals/KeyWorthBank/home1.jpg'},
  {alt:"Medical Banking", url:'MedicalBanking.aspx', src:'/Portals/KeyWorthBank/home2.jpg'}
);

for(var i = Math.round(Math.random() * impulses.length); i > 0; i--)
{
 impulses.push(impulses.shift());
}

while(impulses.length > 5)
{
 impulses.splice(Math.round(Math.random() * (impulses.length - 1)), 1);
}

for(var i = 0; i < impulses.length; i++)
{
 impulses[i] = '<div><a href="'+impulses[i].url+'"><img border="0" alt="'+impulses[i].alt+'" src="'+impulses[i].src+'"/></a></div>';
}

//var impulse = jQuery("<div id='impulses'>" + impulses.join('') + "</div>").insertBefore('#load-anim');