var index1 = 0;
var stop = 3;
var speed = 20;
var timer1 = 0;
var timer2 = 0;

var fadeDelay = 3000;
var fadeMax = 1.0;
if(isIE && !isIE7orLess) {
	fadeMax = 0.4;
	
}

var fadeMin = 0.0;

function fadeUp(layer) {
	$("#"+layer).fadeTo(fadeDelay, fadeMax);
}

function fadeDown(layer) {
	$("#"+layer).fadeTo(fadeDelay, fadeMin);
}

//change the opacity for different browsers
function changeOpac(opacity, obj) {
	var object = document.getElementById(obj).style;
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	
	if(isIE) {
		if(isIE7orLess) {
			object.filter = "alpha(opacity=" + opacity + ")";
		} else {
			object.filter='progid:DXImageTransform.Microsoft.Alpha(Opacity=' + (opacity / 100) + ')';
		}
	}
}

function fisherYates(myArray) {
	var i = myArray.length;
	if ( i == 0 ) return false;
	while ( --i ) {
		var j = Math.floor( Math.random() * ( i + 1 ) );
		var tempi = myArray[i];
		var tempj = myArray[j];
		myArray[i] = tempj;
		myArray[j] = tempi;
	}
}