var PicArray, PicArrayB, Name;
var LoadReady = false;

function preLoad() {
	
		PicArray = new Array();
		PicArrayB = new Array();
		PicArray[0] = new Image();
		PicArrayB[0] = new Image();
		PicArray[0].src = "taustat/etusivu_up.jpg";
		PicArrayB[0].src = "taustat/etusivu_down.jpg";
		PicArray[1] = new Image();
		PicArrayB[1] = new Image();
		PicArray[1].src = "taustat/ajank_up.jpg";
		PicArrayB[1].src = "taustat/ajank_down.jpg";
		PicArray[2] = new Image();
		PicArrayB[2] = new Image();
		PicArray[2].src = "taustat/palvelut_up.jpg";
		PicArrayB[2].src = "taustat/palvelut_down.jpg";
		PicArray[3] = new Image();
		PicArrayB[3] = new Image();
		PicArray[3].src = "taustat/suunnittelu_up.jpg";
		PicArrayB[3].src = "taustat/suunnittelu_down.jpg";
		LoadReady = true;
}

function down( Name, Number ) {
	if( LoadReady == true ){
		document.images[Name].src = PicArrayB[Number].src;
	}
}

function up( Name, Number ) {
	if(LoadReady == true ){
		document.images[Name].src = PicArray[Number].src;
	}
}

preLoad();