// Global Nav Preload
	if (document.images)
	{
		//Create Objects
		var services_inactive= new Image;
		var services_mouseOver = new Image;
		
		var rentals_inactive = new Image;
		var rentals_mouseOver = new Image;
		
		var portfolio_inactive = new Image;
		var portfolio_mouseOver = new Image;
		
		var about_inactive = new Image;
		var about_mouseOver= new Image;
		
		var contact_inactive = new Image;
		var contact_mouseOver= new Image;
		
		 
		//Set Object src
		services_inactive.src = "images/masthead/services_mouseOut.gif";
		services_mouseOver.src = "images/masthead/services_mouseOver.gif";
		
		rentals_inactive.src = "images/masthead/rentals_mouseOut.gif";
		rentals_mouseOver.src = "images/masthead/rentals_mouseOver.gif";
		
		portfolio_inactive.src  = "images/masthead/portfolio_mouseOut.gif";
		portfolio_mouseOver.src = "images/masthead/portfolio_mouseOver.gif" ;
		
		
		about_inactive.src = "images/masthead/about_mouseOut.gif";
		about_mouseOver.src = "images/masthead/about_mouseOver.gif";
		
		contact_inactive.src = "images/masthead/contact_mouseOut.gif";
		contact_mouseOver.src = "images/masthead/contact_mouseOver.gif";
	} 
	else
	{
		services_inactive= "";
		services_mouseOver = "";
		
		rentals_inactive= "";
		rentals_mouseOver = "";
		
		portfolio_inactive = "";
		portfolio_mouseOver = "";
		
		about_inactive = "";
		about_mouseOver= "";
		
		contact_inactive = "";
		contact_mouseOver= "";
	
		document.services_inactive= "";
		document.services_mouseOver= "";
		
		document.about_inactive= "";
		document.services_mouseOver= "";
		
		document.contact_inactive= "";
		document.services_mouseOver= "";
	}
	
	function nav_swap_on(id)
	{
		//alert ("got here, id =" + id);
		switch (id)
		{
			case "services":
			{
				//alert ("got here, id =" + id);
				document.services.src = services_mouseOver.src;	
		
				break;
			}	
			
			case "rentals":
			{
				//alert ("got here, id =" + id);
				document.rentals.src = rentals_mouseOver.src;	
		
				break;
			}
			
			
		 	case "portfolio":
			{
				//alert ("got here, id =" + id);
				document.portfolio.src = portfolio_mouseOver.src;	
		
				break;
			}	
			
		
			case "about":
			{
				//alert ("got to about")
				document.about.src = about_mouseOver.src;
				break;		
			}
			
			case "contact":
			{
				document.contact.src = contact_mouseOver.src;
				break;
			}
		}
	}
	
	function nav_swap_off(id)
	{
		switch (id)
		{
			case "services":
			{
				//alert ("got here");
				document.services.src = services_inactive.src;	
		
				break;
			}	
		
			
			case "rentals":
			{
				//alert ("got here");
				document.rentals.src = rentals_inactive.src;	
		
				break;
			}	


		
			case "portfolio":
			{
				//alert ("got to portfolio swap off");
				document.portfolio.src = portfolio_inactive.src;
				
				break;
			}
		
		
			case "about":
			{
				document.about.src = about_inactive.src;
				break;		
			}
			
			case "contact":
			{
				document.contact.src = contact_inactive.src;
				break;
			}
		}
	}