window.onload = function() {
	
	bgc = new Array();
	bgc[0] = "url(img/back.jpg)";
	bgc[1] = "url(img/back1.jpg)";
	bgc[2] = "url(img/back2.jpg)";
	bgc[3] = "url(img/back3.jpg)";
	bgc[4] = "url(img/back4.jpg)";
	bgc[5] = "url(img/back5.jpg)";
	n = Math.floor(Math.random()*bgc.length);
	document.getElementById("wrap").style.backgroundImage = bgc[n]
	bytefx.fade(document.getElementById("wrap"),0,100,8),
	bytefx.alpha(document.getElementById("contents-alpha"),80),
	bytefx.alpha(document.getElementById("contents-gamma"),95)

};//onload End