$(function () {
	var picArr = new Array ();
	picArr[0] = {name: 'shoe-painting', scale: false};
	picArr[1] = {name: 'head-painting', scale: false};
	picArr[2] = {name: 'sheet', scale: false};
	picArr[3] = {name: 'home', scale: true};
	picArr[4] = {name: 'rock', scale: false};
	picArr[5] = {name: 'canvas', scale: false};
	picArr[6] = {name: 'sketch', scale: true};
	
	// Bild per Zufall ermitteln
	var picRand = getRandom (0, picArr.length - 1);
	var picUrl	= '_ref/images/foto/home/foto_' + picArr[picRand].name + '.jpg';
	
	if (picArr[picRand].scale) {
		$.backstretch (picUrl);	
	} else {
		$('body').css ('background-image', 'url(' + picUrl + ')');	
		$('body').css ('background-repeat', 'no-repeat');
		$('body').css ('background-position', 'center center');
	}
	
	$('#navi_collection, #subnavi').mouseover (function () {
		$('#subnavi').show ();
	});
	
	$('#navi_collection, #subnavi').mouseout (function () {
		$('#subnavi').hide ();
	});	
});

function getRandom (min, max)
{
	if (min > max) {
		return (-1);
	}
	
	if (min == max) {
		return (min);
	}
	
	return (min + parseInt (Math.random () * (max - min + 1)));
}