<!-- Rollover Script -->
       if (document.images) {            // Active Images
        img1on = new Image();
        img1on.src = "images/m_mission_on.gif";
        img2on = new Image();
        img2on.src = "images/m_careers_on.gif";
        img3on = new Image();
        img3on.src = "images/m_contact_on.gif";
        img4on = new Image();
        img4on.src = "images/m_sitemap_on.gif";
        img5on = new Image();
        img5on.src = "images/m_privacy_on.gif";
		img6on = new Image();
        img6on.src = "images/m_products_on.gif";
        img7on = new Image();
        img7on.src = "images/m_patients_on.gif";
        img8on = new Image();
        img8on.src = "images/m_prof_on.gif";
        img9on = new Image();
        img9on.src = "images/m_news_on.gif";

        img1off = new Image();
        img1off.src = "images/m_mission.gif";
        img2off = new Image();
        img2off.src = "images/m_careers.gif";
        img3off = new Image();
        img3off.src = "images/m_contact.gif";
		img4off = new Image();
        img4off.src = "images/m_sitemap.gif";
		img5off = new Image();
        img5off.src = "images/m_privacy.gif";
		img6off = new Image();
        img6off.src = "images/m_products.gif";
		img7off = new Image();
        img7off.src = "images/m_patients.gif";
		img8off = new Image();
        img8off.src = "images/m_prof.gif";
		img9off = new Image();
        img9off.src = "images/m_news.gif";		
        }                          // Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

                                   // Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}
<!-- End Rollover Script -->

<!-- Internal flash popup windows -->
var newwinflash;

function launchwinflash(winurl,winname,winfeatures)
{
	newwinflash = window.open(winurl,winname,winfeatures);
	if(javascript_version > 1.0)
	{
 		setTimeout('newwinflash.focus();',250);
	}
}
<!-- Internal flash popup windows -->