$(document).ready(function() {

    function ShowMenu()
    {
    	$('#'+ this.id +' div').slideDown('fast');
    	button_over(this);
    }
    function HideMenu()
    {
    	$('#'+ this.id +' div').slideUp('fast');
    	button_return(this);
    }
    var MenuConfig = {
         interval: 50,
         sensitivity: 4,
         over: ShowMenu,
         timeout: 50,
         out: HideMenu
    	};
    $("li.menu").hoverIntent(MenuConfig);
});

function Toggle_cart()
{
	$('#cart_view').slideToggle('fast');
}
 
function button_over(button_id)
{
 	$('#btn_'+ button_id.id).attr('src', '/images/layout/nav_bar/'+ button_id.id +'_over.jpg');
	switch(button_id.id)
	{
    	case 'categories':
    		$('#nav1_left').css({'background-image' : 'url("/images/layout/nav_bar/button_middle_over.jpg")'}); 
    	case 'courses':
        	if(button_id.id == 'courses')
        	{
    			$('#nav1_right').css({'background-image' : 'url("/images/layout/nav_bar/button_middle_over.jpg")'});
        	} 
        case 'manufacturers':
    	case 'special':
    	case 'new_products':
    	case 'packages':
    		$('#btn_'+ button_id.id).css({'background-image' : 'url("/images/layout/nav_bar/button_middle_over.jpg")'}); 
        break;
    	case 'home':
    	case 'about' :
    	case 'air':
    	case 'servicing':
    	case 'hire':
    	case 'social':
    	case 'club':
    	case 'calendar':
    	case 'dive_world':
    	case 'resources':
    	case 'faq':
    	case 'contact':
    	case 'customer_service':
    		$('#btn_'+ button_id.id).css({'background-image' : 'url("/images/layout/nav_bar/button_nav2_middle_over.jpg")'}); 
    	break;
	}
}   
function button_return(button_id)
{
   	$("#btn_"+ button_id.id).attr('src', '/images/layout/nav_bar/'+ button_id.id +'.jpg');
	switch(button_id.id)
	{
    	case 'categories':
    		$('#nav1_left').css({'background-image' : 'url("/images/layout/nav1_master_left.jpg")'}); 
    	case 'courses':
        	if(button_id.id == 'courses')
        	{
        		$('#nav1_right').css({'background-image' : 'url("/images/layout/nav1_master_right.jpg")'}); 
        	}         		
    	case 'manufacturers':
    	case 'special':
    	case 'new_products':
    	case 'packages':
    		$('#btn_'+ button_id.id).css({'background-image' : 'url("/images/layout/nav_bar/button_middle.jpg")'}); 
        break;
    	case 'home' :
    	case 'about' :
    	case 'air':	
    	case 'servicing':
    	case 'hire':
    	case 'faq':
    	case 'club':
    	case 'calendar':
    	case 'dive_world':
    	case 'resources':
    	case 'social':
    	case 'contact':
    	case 'customer_service':
    		$('#btn_'+ button_id.id).css({'background-image' : 'url("/images/layout/nav_bar/button_nav2_middle.jpg")'}); 
    	break;
	}

}