if (document.images) {
oneon = new Image();
oneoff = new Image();
oneon.src="on_home.gif";
oneoff.src="off_home.gif";

twoon = new Image();
twooff = new Image();
twoon.src="on_trekking.gif";
twooff.src="off_trekking.gif";

threeon = new Image();
threeoff = new Image();
threeon.src="on_resume.gif";
threeoff.src="off_resume.gif";

fouron = new Image();
fouroff = new Image();
fouron.src="on_contact_us.gif";
fouroff.src="off_contact_us.gif";

fiveon = new Image();
fiveoff = new Image();
fiveon.src="on_nepal_info.gif";
fiveoff.src="off_nepal_info.gif";

sixon = new Image();
sixoff = new Image();
sixon.src="on_links.gif";
sixoff.src="off_links.gif";
}

function imgOn (imgName) {
if (document.images) {document[imgName].src = eval(imgName + "on.src");}
}

function imgOff (imgName) {
if (document.images) {document[imgName].src = eval(imgName + "off.src");}
}