function showMenu(i){
	var lRef=document.getElementById('menu-'+i);
	lRef.style.backgroundColor='#ffffff';
	
	var ilRef=document.createElement('div');
	ilRef.id='image-container-'+i;
	ilRef.style.height='58px';
	ilRef.style.backgroundColor='#cccccc';
	
	var imgRef=new Image();
	imgRef.src='images/btns_images/btn'+i+'.jpg';
	ilRef.appendChild(imgRef);
	
	lRef.appendChild(ilRef);
}

function hideMenu(i){
	var lRef=document.getElementById('menu-'+i);
	lRef.style.backgroundColor='#3D669A';
	lRef.removeChild(document.getElementById('image-container-'+i));
}