window.onload = function() {
	createdImage = document.getElementById("vimira").firstChild;
	createdImage.onmouseover = function() {
		createdImage.style.top = "-23px";
	}
	createdImage.onmouseout = function() {
		createdImage.style.top = "0";
	}
	
	createdImage2 = document.getElementById("aplinkos-ministerija").firstChild;
	createdImage2.onmouseover = function() {
		createdImage2.style.top = "-57px";
	}
	createdImage2.onmouseout = function() {
		createdImage2.style.top = "0";
	}
	
	createdImage3 = document.getElementById("generaline-misku-uredija").firstChild;
	createdImage3.onmouseover = function() {
		createdImage3.style.top = "-57px";
	}
	createdImage3.onmouseout = function() {
		createdImage3.style.top = "0";
	}
	
	randomImage();
}

if (document.images) {
	img1 = new Image();
	img1.src = "themes/jmu/images/left-menu-background.png";
	
	img2 = new Image();
	img2.src = "themes/jmu/images/left-menu-background-arrow.png";
}

function randomImage() {

	var images = new Array();
	images[0] = "F01.jpg";
	images[1] = "F02.jpg";
	images[2] = "F03.jpg";
	images[3] = "F04.jpg";
	images[4] = "F05.jpg";
	images[5] = "F06.jpg";
	images[6] = "F07.jpg";
	images[7] = "F08.jpg";
	images[8] = "F09.jpg";
	images[9] = "F10.jpg";
	images[10] = "F11.jpg";
	images[11] = "F12.jpg";
	images[12] = "F13.jpg";
	images[13] = "F14.jpg";
	images[14] = "F15.jpg";
	images[15] = "F16.jpg";
	images[16] = "F17.jpg";
	
	var subImage = document.getElementById("sub-image");
	
	if (subImage != null) {
		var random = Math.floor(Math.random() * images.length);
		
		subImage.src = "themes/jmu/images/pictures/" + images[random];
	}
	
	
	<!--alert( images.length );

}