if (document.images) {
	imageUp = new Image(); imageUp.src = "lib/client/media/NavBarBackgr_125x221_2.jpg";
	imageUp1 = new Image(); imageUp1.src = "lib/client/media/sideBar1_on.jpg";
	imageUp2 = new Image(); imageUp2.src = "lib/client/media/sideBar2_on.jpg";
	imageUp3 = new Image(); imageUp3.src = "lib/client/media/sideBar3_on.jpg";
	imageUp4 = new Image(); imageUp4.src = "lib/client/media/sideBar4_on.jpg";
	image1 = new Image(); image1.src = "lib/client/media/sideBar1_on.jpg";
	image2 = new Image(); image2.src = "lib/client/media/sideBar2_on.jpg";
	image3 = new Image(); image3.src = "lib/client/media/sideBar3_on.jpg";
	image4 = new Image(); image4.src = "lib/client/media/sideBar4_on.jpg";
}

if (document.images) {
	imageUp = new Image(); 
	imageUp.src = "lib/client/media/NavBarBackgr_150x221.jpg";
	imageDown = new Image(); 	
}

function switch_off(cell) {
	if (document.images != null) {
		cell.style.backgroundImage = "url('" + imageUp.src + "')";
	}
}

function switch_off1(cell) {
	if (document.images != null) {
		cell.style.backgroundImage = "url('" + imageUp1.src + "')";
	}
}

function switch_off2(cell) {
	if (document.images != null) {
		cell.style.backgroundImage = "url('" + imageUp2.src + "')";
	}
}

function switch_off3(cell) {
	if (document.images != null) {
		cell.style.backgroundImage = "url('" + imageUp3.src + "')";
	}
}

function switch_off4(cell) {
	if (document.images != null) {
		cell.style.backgroundImage = "url('" + imageUp4.src + "')";
	}
}

function switch_1(cell) {
	if (document.images != null) {
		cell.style.backgroundImage = "url('" + image1.src + "')";
	}
}
	
function switch_2(cell) {
		if (document.images != null) {
			cell.style.backgroundImage = "url('" + image2.src + "')";
	}
}
	
function switch_3(cell) {
		if (document.images != null) {
			cell.style.backgroundImage = "url('" + image3.src + "')";
		}
}

function switch_4(cell) {
	if (document.images != null) {
		cell.style.backgroundImage = "url('" + image4.src + "')";
	}
}