function preload(){
 		im15 = new Image;
 		im14 = new Image;
 		im13 = new Image;
 		im12 = new Image;
 		im11 = new Image;
 		im10 = new Image;
 		im9 = new Image;
 		im8 = new Image;
 		im7 = new Image;
 		im6 = new Image;
 		im5 = new Image;
 		im4 = new Image;
 		im3 = new Image;
 		im2 = new Image;
 		im1 = new Image;
		im1.src = 'img/l1o.jpg';
		im2.src = 'img/l2o.jpg';
		im3.src = 'img/l3o.jpg';
		im4.src = 'img/l4o.jpg';
		im5.src = 'img/l5o.jpg';
		im6.src = 'img/mo1.jpg';
		im7.src = 'img/mo2.jpg';
		im8.src = 'img/mo3.jpg';
		im9.src = 'img/mo4.jpg';
		im10.src = 'img/mo5.jpg';
		im11.src = 'img/to1.jpg';
		im12.src = 'img/to2.jpg';
		im13.src = 'img/to3.jpg';
		im14.src = 'img/to4.jpg';
		im15.src = 'img/to5.jpg';
}

function over(i){
	var l =document.getElementById('l'+i);
	if (l != null) {
		l.src='img/l'+i+'o.jpg';
	}
	document.getElementById('t'+i).src='img/to'+i+'.gif';
	document.getElementById('m'+i).src='img/m'+i+'.jpg';
}

function out(i){
	var l =document.getElementById('l'+i);
	if (l != null) {
		l.src='img/l'+i+'.jpg';
	}
	document.getElementById('t'+i).src='img/t'+i+'.gif';
	document.getElementById('m'+i).src='img/mo'+i+'.jpg';
}