var root = 'greatplains/';

var images = Array('banner_1.jpg', 'banner_2.jpg', 'banner_3.jpg', 'banner_4.jpg', 'banner_5.jpg');

function i_getRelativePath() {
	var pathname = location.pathname.substring(1).replace(root, '');
	var dir = '';
	for(var i=0; i<pathname.length; i++) {
		if(pathname.charAt(i) == '/') {
			dir += '../'
		}
	}
	return dir;
}

function i_getSection() {
	var pathname = location.pathname.substring(1).replace(root, '');
	var section = "";
	if(pathname.indexOf('/') > 0) {
		section = pathname.substring(0, pathname.indexOf('/'));
	}
	return section;
}


function i_images(imagefolder) {
	this.imagefolder = imagefolder;
	this.images = Array();
	
	this.loadImages = i_loadImages;
	this.getRandomNumber = i_getRandomNumber;
	this.displayImage = i_displayImage;
}

function i_loadImages(images) {
	this.images = images;
}

function i_getRandomNumber() {
	var day = new Date();
	var seed = day.getTime();
	return parseInt(((seed - (parseInt(seed/1000,10) * 1000)) /10) /100 * randomimage.images.length + 1,10);
}

function i_displayImage() {
	var randomnumber = this.getRandomNumber();
	var relativepath = i_getRelativePath();
	document.write('<img border="0" alt="Re-Energized for Growth" src="' + relativepath + this.imagefolder + '/' + this.images[randomnumber-1] + '">');
}

var imagefolder = 'main/images/index';
var randomimage = new i_images(imagefolder);

randomimage.loadImages(images);

randomimage.displayImage();