if(document.images) {
pics = new Array(); 
pics[1] = new Image();
pics[1].src = "./images/home.png"; 
pics[2] = new Image();
pics[2].src = "./images/over/home.png";

pics[3] = new Image();
pics[3].src = "./images/paving.png"; 
pics[4] = new Image();
pics[4].src = "./images/over/paving.png";

pics[5] = new Image();
pics[5].src = "./images/interlock.png"; 
pics[6] = new Image();
pics[6].src = "./images/over/interlock.png";

pics[7] = new Image();
pics[7].src = "./images/gallery.png"; 
pics[8] = new Image();
pics[8].src = "./images/over/gallery.png";

pics[9] = new Image();
pics[9].src = "./images/residential.png"; 
pics[10] = new Image();
pics[10].src = "./images/over/residential.png";

pics[11] = new Image();
pics[11].src = "./images/commercial.png"; 
pics[12] = new Image();
pics[12].src = "./images/over/commercial.png";


pics[13] = new Image();
pics[13].src = "./images/company.png"; 
pics[14] = new Image();
pics[14].src = "./images/over/company.png";
}

function changer(from,to) {
	if(document.images)
		document.images[from].src = pics[to].src;
}