function displayit(x)
	{
		if(document.getElementById(x).style.display == "none")
		{
			document.getElementById(x).style.display="inline";
		}else{
			document.getElementById(x).style.display="none";
		}
	}
	if(document.images)
	{
	  var image_array = new Array();
		
	  // path to the directory with images
	  var path = '/images/';
	
	  // enumeration of the "active" images
	  image_array[0] = path + "home_btn2.jpg";
	  image_array[1] = path + "which_machine_btn2.jpg";
	  image_array[2] = path + "owner_services_btn2.jpg";
	  image_array[3] = path + "our_company_btn2.jpg";
	  image_array[4] = path + "contact_us_btn2.jpg";
	  image_array[5] = path + "media_btn2.jpg";
	  image_array[6] = path + "faq_btn2.jpg";
	  image_array[7] = path + "smenu_projection_surface_friction_btn2.jpg";
	  image_array[8] = path + "smenu_cannons_btn2.jpg";
	  image_array[9] = path + "smenu_electronic_data_equipment_btn2.jpg";
	  image_array[10] = path + "smenu_accessories_btn2.jpg";
	  image_array[11] = path + "smenu_headforms_btn2.jpg";
	  image_array[12] = path + "smenu_retention_btn2.jpg";
	  image_array[13] = path + "smenu_roll_off_btn2.jpg";
	  image_array[14] = path + "smenu_conditioning_machines_btn2.jpg";
	  image_array[15] = path + "smenu_optical_machines_btn2.jpg";
	
	  var preload_image = new Array ();
	 
	  for(var i=0; i<image_array.length; i++)
	  {
	    preload_image[i]= new Image();
	    preload_image[i].src = image_array[i];
	  }
	}