<!--

////////////////
// image preload
////////////////
function preloadimages() {

	if (document.images)
	{
	
		home_button_on = new Image();
		home_button_on.src = "images/buttons/home_on.jpg";

		about_us_button_on = new Image();
		about_us_button_on.src = "images/buttons/about_us_on.jpg";
		
		contact_us_button_on = new Image();
		contact_us_button_on.src = "images/buttons/contact_us_on.jpg";

		awning_services_button_on = new Image();
		awning_services_button_on.src = "images/navigation/awning_services_on.jpg";

		exterior_maintenance_button_on = new Image();
		exterior_maintenance_button_on.src = "images/navigation/exterior_maintenance_on.jpg";
		
		janitorial_services_button_on = new Image();
		janitorial_services_button_on.src = "images/navigation/janitorial_services_on.jpg";

		preventive_bird_control_button_on = new Image();
		preventive_bird_control_button_on.src = "images/navigation/preventive_bird_control_on.jpg";
		
	}

}


/////////////
// image swap
/////////////
function changer(from, to) {
	if(document.images) {
		document.images[from].src = "images/buttons/" + from + "_" + to + ".jpg";
	}
}

function changer2(from, to) {
	if(document.images) {
		document.images[from].src = "images/navigation/" + from + "_" + to + ".jpg";
	}
}

//-->