if (document.images) {
    consultingoff = new Image();
    consultingoff.src = "/img/nav/consulting_off.gif";
    portfoliooff = new Image();
    portfoliooff.src = "/img/nav/portfolio_off.gif";
    ratesoff = new Image();
    ratesoff.src = "/img/nav/rates_off.gif";
    equipmentoff = new Image();
    equipmentoff.src = "/img/nav/equipment_off.gif";
    photosoff = new Image();
    photosoff.src = "/img/nav/photos_off.gif";

    consultingon = new Image();
    consultingon.src = "/img/nav/consulting_on.gif";
    portfolioon = new Image();
    portfolioon.src = "/img/nav/portfolio_on.gif";
    rateson = new Image();
    rateson.src = "/img/nav/rates_on.gif";
    equipmenton = new Image();
    equipmenton.src = "/img/nav/equipment_on.gif";
    photoson = new Image();
    photoson.src = "/img/nav/photos_on.gif";

}

// Function to 'activate' images.

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

// Function to 'deactivate' images.

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

// Function to create dynamic pop up window, currently set to center window on screen.

function newWindow(url, wid, hgt, scr, res, stat, x, y) {
    if (screen) {
        widthOfScreen = screen.width
        heightOfScreen = screen.height
    }
    midX = widthOfScreen / 2
    midY = heightOfScreen / 2
    midWid = wid / 2
    midHgt = hgt / 2
    x = midX - midWid
    y = midY - midHgt
    popUpWindow = window.open(url, 'popUp', 'width='+wid+',height='+hgt+',scrollbars='+scr+',resizable='+res+',status='+stat+',left='+x+',top='+y+'')
}

function flashBanner(page, width, height) {
    document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" width="' + width + '" height="' + height + '" id="' + page + '" align="middle">');
    document.write('    <param name="allowScriptAccess" value="sameDomain" />');
    document.write('    <param name="movie" value="/swf/' + page + '.swf" />');
    document.write('    <param name="quality" value="high" />');
    document.write('    <param name="bgcolor" value="#cccccc" />');
    document.write('    <embed src="/swf/' + page + '.swf" quality="high" bgcolor="#cccccc" width="' + width + '" height="' + height + '" name="' + page + '" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />');
    document.write(' </object>');
}