map=new Array();
map[0]=new Image();map[0].src='../img/head/iphone_1.png';
map[1]=new Image();map[1].src='../img/head/company_1.png';
map[2]=new Image();map[2].src='../img/head/contact_1.png';

map_e=new Array();
map_e[0]=new Image();map_e[0].src='../img/head/iphone_e1.png';
map_e[1]=new Image();map_e[1].src='../img/head/company_e1.png';
map_e[2]=new Image();map_e[2].src='../img/head/contact_e1.png';

function mouse_down(id,cl){
document.getElementById(id).className=cl;
}