function showMenuButton(e1,e2,e3) {
	var el1 = document.getElementById(e1);
	var el2 = document.getElementById(e2);
	var el3 = document.getElementById(e3);
	
	el1.style.backgroundImage = 'url(http://www.funhax.com/gfx/main_menu_button_left.png)';
	el1.style.backgroundRepeat = 'no-repeat';
	el2.style.backgroundImage = 'url(http://www.funhax.com/gfx/main_menu_button_middle.png)';
	el2.style.backgroundRepeat = 'repeat-x';
	el3.style.backgroundImage = 'url(http://www.funhax.com/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);
	var el1Class = el1.className;
	var el2Class = el2.className;
	var el3Class = el3.className;
	
	
	
	if(el1Class != "main_button_right_on") {
		el1.style.backgroundImage = 'none';
		el2.style.backgroundImage = 'none';
		el3.style.backgroundImage = 'none';
	}
}