// JavaScript Document
if(document.images) {
pics = new Array(); 
pics[1] = new Image();
pics[1].src = "img/structure/nav/a.gif"; 
pics[2] = new Image();
pics[2].src = "img/structure/nav/b.gif";
pics[3] = new Image();
pics[3].src = "img/structure/nav/a2.gif"; 
pics[4] = new Image();
pics[4].src = "img/structure/nav/b2.gif";
pics[5] = new Image();
pics[5].src = "img/structure/nav/a3.gif"; 
pics[6] = new Image();
pics[6].src = "img/structure/nav/b3.gif";
pics[7] = new Image();
pics[7].src = "img/structure/nav/a4.gif"; 
pics[8] = new Image();
pics[8].src = "img/structure/nav/b4.gif";
pics[9] = new Image();
pics[9].src = "img/structure/nav/a5.gif"; 
pics[10] = new Image();
pics[10].src = "img/structure/nav/b5.gif";
pics[11] = new Image();
pics[11].src = "img/structure/nav/a6.gif"; 
pics[12] = new Image();
pics[12].src = "img/structure/nav/b6.gif";
pics[133] = new Image();
pics[133].src = "img/structure/nav/a77.gif"; 
pics[144] = new Image();
pics[144].src = "img/structure/nav/b77.gif";
pics[13] = new Image();
pics[13].src = "img/structure/nav/a7.gif"; 
pics[14] = new Image();
pics[14].src = "img/structure/nav/b7.gif";
pics[15] = new Image();
pics[15].src = "img/structure/nav/a8.gif"; 
pics[16] = new Image();
pics[16].src = "img/structure/nav/b8.gif";
pics[17] = new Image();
pics[17].src = "img/structure/nav/a9.gif"; 
pics[18] = new Image();
pics[18].src = "img/structure/nav/b9.gif";
}

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