var i1 = new Image(); i1.src="../pics/menu4_tech_o.png"; 
var i2 = new Image(); i2.src="../pics/menu5_clients_o.png"; 
var i3 = new Image(); i3.src="../pics/menu6_contacts_o.png"; 
var i4 = new Image(); i4.src="../pics/menu1_home_o.png"; 
var i5 = new Image(); i5.src="../pics/menu2_about_o.png"; 
var i6 = new Image(); i6.src="../pics/menu3_products_o.png";