var img_on = new Array();
var img_off = new Array();
var current_page = "";
function initialize(menu) {
current_page = menu;
img_on['home'] =new Image();
img_on['home'].src ="images/home_1.jpg"; 

img_on['product'] =new Image();
img_on['product'].src ="images/product_1.jpg"; 

img_on['colour'] =new Image();
img_on['colour'].src ="images/colour_1.jpg"; 

img_on['about'] =new Image();
img_on['about'].src ="images/about_1.jpg";

img_on['contact'] =new Image();
img_on['contact'].src ="images/contact_1.jpg";  

img_off['home']=new Image();
img_off['home'].src ="images/home.jpg"; 


img_off['product']=new Image();
img_off['product'].src ="images/products.jpg"; 


img_off['colour']=new Image();
img_off['colour'].src ="images/colours.jpg";


img_off['about']=new Image(); 
img_off['about'].src ="images/about.jpg";


img_off['contact']=new Image();
img_off['contact'].src ="images/contact.jpg"; 

handleOver(current_page);

}



function handleOver(menu) { 

	
		switch (menu)
			{
			 case 'home':
			
				document.home.src = img_on['home'].src;
				break;
			 case 'product':
				document.product.src = img_on['product'].src;
				break;
			 case 'colour':
				document.colour.src = img_on['colour'].src;
				break;
			 case 'about':
				document.about.src = img_on['about'].src;
				break;
			 case 'contact':
				document.contact.src = img_on['contact'].src;
				break;			

			}			


	
}

function handleOut(menu) {
		var selected_page = current_page;
		switch (menu)
			{
			 case 'home':
				
				if ( selected_page != 'home'){
				document.home.src = img_off['home'].src;
				}
				break;

			 case 'product':
				if ( selected_page != 'product'){
				document.product.src = img_off['product'].src;
				}
				break;

			 case 'colour':
				if ( selected_page != 'colour'){
				document.colour.src = img_off['colour'].src;
				}
				break;

			 case 'about':
				if ( selected_page != 'about'){
				document.about.src = img_off['about'].src;
				}
				break;

			 case 'contact':
				if ( selected_page != 'contact'){
				document.contact.src = img_off['contact'].src;
				}
				break;			

			}
}