img1on=new Image();
img1on.src="images/inside.on.gif";
img1off=new Image();
img1off.src="images/inside.off.gif";

img2on=new Image();
img2on.src="images/portfolio.on.gif";
img2off=new Image();
img2off.src="images/portfolio.off.gif";

img3on=new Image();
img3on.src="images/services.on.gif";
img3off=new Image();
img3off.src="images/services.off.gif";

img5on=new Image();
img5on.src="images/blog.on.gif";
img5off=new Image();
img5off.src="images/blog.off.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");
        }
}

//text

img4inside=new Image();
img4inside.src="images/inside.text.gif";

img4portfolio=new Image();
img4portfolio.src="images/portfolio.text.gif";

img4services=new Image();
img4services.src="images/services.text.gif";

img4off=new Image();
img4off.src="images/home.btmleft.gif";

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

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

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

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