function light(num){ 
	el('im_item'+num).src = '/img/m_button2.jpg';
}

function unlight(num){
	el('im_item'+num).src = '/img/m_button1.jpg';
}

function el(id) {
	return document.getElementById(id)
}

function move(){
	el('toplines').src = '/img/lines3.jpg';
	el('toplines').style.left = parseInt(Math.max((document.body.scrollWidth-770)/2, 0)-135)+'px'; 
}