logo1=new Image();
logo2=new Image();
logo3=new Image();
logo4=new Image();
logo5=new Image();
logo6=new Image();
logo7=new Image();
logo8=new Image();
logo9=new Image();
logo10=new Image();
logo11=new Image();
logo12=new Image();

logo1.src="../images/navBar_1.jpg";
logo2.src="../images/navBar_1a.jpg";
logo3.src="../images/navBar_3.jpg";
logo4.src="../images/navBar_3a.jpg";
logo5.src="../images/navBar_5.jpg";
logo6.src="../images/navBar_5a.jpg";
logo7.src="../images/navBar_7.jpg";
logo8.src="../images/navBar_7a.jpg";
logo9.src="../images/navBar_9.jpg";
logo10.src="../images/navBar_9a.jpg";
logo11.src="../images/navBar_11.jpg";
logo12.src="../images/navBar_11a.jpg";

function display(num) {
if (num=="1") document.images[0].src=logo1.src;
if (num=="2") document.images[0].src=logo2.src;
}

function display2(num) {
if (num=="1") document.images[2].src=logo3.src;
if (num=="2") document.images[2].src=logo4.src;
}

function display3(num) {
if (num=="1") document.images[4].src=logo5.src;
if (num=="2") document.images[4].src=logo6.src;
}

function display4(num) {
if (num=="1") document.images[6].src=logo7.src;
if (num=="2") document.images[6].src=logo8.src;
}

function display5(num) {
if (num=="1") document.images[8].src=logo9.src;
if (num=="2") document.images[8].src=logo10.src;
}

function display6(num) {
if (num=="1") document.images[10].src=logo11.src;
if (num=="2") document.images[10].src=logo12.src;
}