var bannerArray = "";
var currentBanner = "";

$(document).ready(function(){
	if (document.getElementById('pageBanner')){
		if (document.getElementById('pageBanner').innerHTML){
			bannerArray = explode('#,#',document.getElementById('pageBanner').innerHTML);
			if (bannerArray.length > 0){
				currentBanner = Math.floor(Math.random()*bannerArray.length);
				document.getElementById('pageBanner').innerHTML = bannerArray[currentBanner];
				$('#pageBanner').fadeIn(500);
			}
		}
	}
});

function swapBanner(bannerNum){
	if (bannerArray.length > 1){
		do {
			currentBanner = Math.floor(Math.random()*bannerArray.length);
		} while (currentBanner == bannerNum)
		$('#pageBanner').fadeTo(300, 0.5, function(){
			document.getElementById('pageBanner').innerHTML = bannerArray[currentBanner];
			$('#pageBanner').fadeTo(500, 1);
		});
	} else {
		clearInterval(bannerIntervalID);
	}
}

function explode( delimiter, string, limit ) {
	// http://kevin.vanzonneveld.net
	// +     original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// +     improved by: kenneth
	// +     improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// +     improved by: d3x
	// +     bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// *     example 1: explode(' ', 'Kevin van Zonneveld');
	// *     returns 1: {0: 'Kevin', 1: 'van', 2: 'Zonneveld'}
	// *     example 2: explode('=', 'a=bc=d', 2);
	// *     returns 2: ['a', 'bc=d']
 
	var emptyArray = { 0: '' };

	// third argument is not required
	if ( arguments.length < 2 ||
		typeof arguments[0] == 'undefined' ||
		typeof arguments[1] == 'undefined' )
	{
		return null;
	}

	if ( delimiter === '' ||
		delimiter === false ||
		delimiter === null )
	{
		return false;
	}

	if ( typeof delimiter == 'function' ||
		typeof delimiter == 'object' ||
		typeof string == 'function' ||
		typeof string == 'object' )
	{
		return emptyArray;
	}

	if ( delimiter === true ) {
		delimiter = '1';
	}

	if (!limit) {
		return string.toString().split(delimiter.toString());
	} else {
		// support for limit argument
		var splitted = string.toString().split(delimiter.toString());
		var partA = splitted.splice(0, limit - 1);
		var partB = splitted.join(delimiter.toString());
		partA.push(partB);
		return partA;
	}
}