//preload images for navigation
nav_home_on = new Image();
nav_home_on = '../images/nav_home_on.gif';

nav_about_on = new Image();
nav_about_on = '../images/nav_about_on.gif';

nav_home_services_on = new Image();
nav_home_services_on = '../images/nav_home_services_on.gif';

nav_business_services_on = new Image();
nav_business_services_on = '../images/nav_business_services_on.gif';

nav_support_on = new Image();
nav_support_on = '../images/nav_support_on.gif';

nav_contact_on = new Image();
nav_contact_on = '../images/nav_contact_on.gif';
//stop preloadin' images

function navOn(imName) {
		if (document.images) { 
		document.images[imName].src = '../images/' + imName + "_on.gif"
			 };
}
function navOff(imName) {
		if (document.images) { 
		document.images[imName].src = '../images/' + imName + '.gif' 
		};
}