$(document).ready(function(){
	randomImageSet('#sub .banners .random');
});

function randomImageSet(tar){
	var l = $('p',tar).size();
	var rand = Math.floor(Math.random()*l)+1;
	if(rand > l){
		rand = l;
	}
	$('p:nth-child('+rand+')',tar).css('visibility','visible');
}