// Create image objects and preload all active, inactive, and  
// banner images

if (document.images) {
    // active images
	var img1_on = new Image(); 
	img1_on.src = "/images/navigation/home_ventilation_on.jpg";
	
	var img2_on = new Image(); 
	img2_on.src = "/images/navigation/ventilation_fans_on.jpg";
	
	var img3_on = new Image(); 
	img3_on.src = "/images/navigation/heat_transfer_on.jpg";
	
	var img4_on = new Image(); 
	img4_on.src = "/images/navigation/central_vacuums_on.jpg";
	
	var img5_on = new Image(); 
	img5_on.src = "/images/navigation/lighting_on.jpg";
	
	var img6_on = new Image(); 
	img6_on.src = "/images/navigation/door_chimes_on.jpg";
	
	var img7_on = new Image(); 
	img7_on.src = "/images/navigation/home_on.jpg";
	
	var img8_on = new Image(); 
	img8_on.src = "/images/navigation/prod_range_on.jpg";
	
	var img9_on = new Image(); 
	img9_on.src = "/images/navigation/prod_news_on.jpg";
	
	var img10_on = new Image(); 
	img10_on.src = "/images/navigation/pro_series_on.jpg";
	
	var img11_on = new Image(); 
	img11_on.src = "/images/navigation/contact_on.jpg";
	
		
	
	
	// inactive images
	var img1_off = new Image(); 
	img1_off.src = "/images/navigation/home_ventilation_off.jpg";
	
	var img2_off = new Image(); 
	img2_off.src = "/images/navigation/ventilation_fans_off.jpg";
	
	var img3_off = new Image(); 
	img3_off.src = "/images/navigation/heat_transfer_off.jpg";
	
	var img4_off = new Image(); 
	img4_off.src = "/images/navigation/central_vacuums_off.jpg";
	
	var img5_off = new Image(); 
	img5_off.src = "/images/navigation/lighting_off.jpg";
	
	var img6_off = new Image(); 
	img6_off.src = "/images/navigation/door_chimes_off.jpg";
	
	var img7_off = new Image(); 
	img7_off.src = "/images/navigation/home_off.jpg";
	
	var img8_off = new Image(); 
	img8_off.src = "/images/navigation/prod_range_off.jpg";
	
	var img9_off = new Image(); 
	img9_off.src = "/images/navigation/prod_news_off.jpg";
	
	var img10_off = new Image(); 
	img10_off.src = "/images/navigation/pro_series_off.jpg";
	
	var img11_off = new Image(); 
	img11_off.src = "/images/navigation/contact_off.jpg";
	
	
	


	// banner images
	var img1_banner = new Image(); 
	img1_banner.src = "/images/navigation/home_ventilation_banner.jpg";
	
	var img2_banner = new Image(); 
	img2_banner.src = "/images/navigation/ventilation_fans_banner.jpg";
	
	var img3_banner = new Image(); 
	img3_banner.src = "/images/navigation/heat_transfer_banner.jpg";
	
    var img4_banner = new Image(); 
	img4_banner.src = "/images/navigation/central_vacuums_banner.jpg";
	
	var img5_banner = new Image(); 
	img5_banner.src = "/images/navigation/lighting_banner.jpg";
	
	var img6_banner = new Image(); 
	img6_banner.src = "/images/navigation/door_chimes_banner.jpg";
	
	var img7_banner = new Image(); 
	img7_banner.src = "/images/navigation/default.jpg";
	
	var img8_banner = new Image(); 
	img8_banner.src = "/images/navigation/default.jpg";
	
	var img9_banner = new Image(); 
	img9_banner.src = "/images/navigation/default.jpg";
	
	var img10_banner = new Image(); 
	img10_banner.src = "/images/navigation/default.jpg";
	
	var img11_banner = new Image(); 
	img11_banner.src = "/images/navigation/default.jpg";
	
	
}

// Function to activate image and banner
function imgOn(imgName) {
	if (document.images) {
		document.images[imgName].src = eval(imgName + "_on.src");
		document.banner.src = eval(imgName + "_banner.src");
	}
}

// Function to deactivate image and banner
function imgOff(imgName) {
	if (document.images) {
		document.images[imgName].src = eval(imgName + "_off.src");
		document.banner.src = "/images/navigation/default.jpg";
	}
}



function displayWindow500x450( url )
{
  remoteWin = window.open(url,"",'width=500,height=500,resizable=yes,scrollbars=yes');
}

function displayWindow500x400( url )
{
  remoteWin = window.open(url,"",'width=500,height=400,resizable=yes,scrollbars=yes');
}


function displayWindow500x500( url )
{
  remoteWin = window.open(url,"",'width=600,height=500,resizable=yes,scrollbars=yes,toolbar=yes');
}