function showMenuButton(e1,e2,e3) {
	var el1 = document.getElementById(e1);
	var el2 = document.getElementById(e2);
	var el3 = document.getElementById(e3);
	
	el1.style.backgroundImage = 'url(gfx/main_menu_button_left.png)';
	el1.style.backgroundRepeat = 'no-repeat';
	el2.style.backgroundImage = 'url(gfx/main_menu_button_middle.png)';
	el2.style.backgroundRepeat = 'repeat-x';
	el3.style.backgroundImage = 'url(gfx/main_menu_button_right.png)';
	el3.style.backgroundRepeat = 'no-repeat';
}

function hideMenuButton(e1,e2,e3) {
	var el1 = document.getElementById(e1);
	var el2 = document.getElementById(e2);
	var el3 = document.getElementById(e3);
	
	el1.style.backgroundImage = 'none';
	el2.style.backgroundImage = 'none';
	el3.style.backgroundImage = 'none';
}

function changeTitleColor(title, light) {
	
	if (light != 0) {
		document.getElementById(title).style.color = "ActiveCaption";
	} else {
		document.getElementById(title).style.color = "Background";
	}
	
}

function changeImgFrame(img, light) {

	if (light != 0) {
		document.getElementById(img).style.borderColor = "#ff0000";
	} else {
		document.getElementById(img).style.borderColor = "#d1e5f0";
	}
	
	
}