if (document.images ){
    //Preloads and images instances
    
    // Botones de idiomas
    
    img_espaniol_light  = new Image();    img_espaniol_light.src = "images/idomas_light_03.jpg";
    img_ingles_light    = new Image();    img_ingles_light.src = "images/idomas_light_05.jpg";
    
    // Botones Cabecera Ingles
    img_home     = new Image();           img_home.src      = "images/buttonn_en_03.jpg";
    img_quote    = new Image();           img_quote.src     = "images/buttonn_en_05.jpg";
    img_contactus= new Image();           img_contactus.src = "images/buttonn_en_07.jpg";
    
    img_home_light     = new Image();     img_home_light.src      = "images/button_en_light_03.jpg";
    img_quote_light    = new Image();     img_quote_light.src     = "images/button_en_light_05.jpg";
    img_contactus_light= new Image();     img_contactus_light.src = "images/button_en_light_07.jpg";
    
    // Botones cabecera Espaniol
    
    img_home_es     = new Image();           img_home_es.src      = "images/header_11.jpg";
    img_quote_es    = new Image();           img_quote_es.src     = "images/header_13.jpg";
    img_contactus_es= new Image();           img_contactus_es.src = "images/header_15.jpg";
    
    img_home_light_es     = new Image();     img_home_light_es.src      = "images/buttons_light_10.jpg";
    img_quote_light_es    = new Image();     img_quote_light_es.src     = "images/buttons_light_12.jpg";
    img_contactus_light_es= new Image();     img_contactus_light_es.src = "images/buttons_light_14.jpg";
  
    // Botones inferiores Ingles
    
    // Botones Inferiores Espaniol
    
    img_nosotros_es    = new Image();     img_nosotros_es.src  = "images/button_nosotros_es_light.jpg";
    img_clientes_es    = new Image();     img_clientes_es.src  = "images/button_clientes_es_light.jpg";
    img_clayton_es     = new Image();     img_clayton_es.src   = "images/buttons_body_19.jpg";
    img_grove_es       = new Image();     img_grove_es.src     = "images/buttons_body_20.jpg";
    img_revistas_es    = new Image();     img_revistas_es.src  = "images/button_revistas_es_light.jpg";
    
    img_nosotros_light_es    = new Image();     img_nosotros_light_es.src  = "images/button_nosotros_en_light.jpg";
    img_clientes_light_es    = new Image();     img_clientes_light_es.src  = "images/button_clientes_en_light.jpg";
    img_clayton_light_es     = new Image();     img_clayton_light_es.src   = "images/button_light_20.jpg";
    img_grove_light_es       = new Image();     img_grove_light_es.src     = "images/button_light_21.jpg";
    img_revistas_light_es    = new Image();     img_revistas_light_es.src  = "images/button_revistas_en_light.jpg";
    
    
    // Marcas 
    
    
    img_clayton = new Image();           img_clayton.src = "images/home_cortes_marcas_04.jpg";
    img_clayton_light = new Image();     img_clayton_light.src = "images/home_cortes_marcas_light_04.jpg";
    
    img_grove = new Image();             img_grove.src = "images/home_cortes_marcas_06.jpg";
    img_grove_light = new Image();       img_grove_light.src = "images/home_cortes_marcas_light_06.jpg";
    
    img_national = new Image();          img_national.src = "images/home_cortes_marcas_11.jpg";
    img_national_light = new Image();    img_national_light.src = "images/home_cortes_marcas_light_11.jpg";
   
    img_manitowoc = new Image();         img_manitowoc.src = "images/home_cortes_marcas_08.jpg";
    img_manitowoc_light = new Image();   img_manitowoc_light.src = "images/home_cortes_marcas_light_08.jpg";
    
    img_mineria = new Image();           img_mineria.src = "images/home_cortes_marcas_16.jpg";
    img_mineria_light = new Image();     img_mineria_light.src = "images/home_cortes_marcas_light_16.jpg";
   
    img_construccion = new Image();      img_construccion.src = "images/home_cortes_marcas_18.jpg";
    img_construccion_light = new Image(); img_construccion_light.src = "images/home_cortes_marcas_light_18.jpg";
    
    
    img_clayton_light_int = new Image();      img_clayton_light_int.src = "images/marcas_interior_over_03.jpg";
    img_grove_light_int = new Image();        img_grove_light_int.src = "images/marcas_interior_over_12.jpg";
    img_national_light_int = new Image();     img_national_light_int.src = "images/marcas_interior_over_14.jpg";
    img_manitowoc_light_int = new Image();    img_manitowoc_light_int.src = "images/marcas_interior_over_06.jpg";
    img_mineria_light_int = new Image();      img_mineria_light_int.src = "images/marcas_interior_over_17.jpg";
    img_construccion_light_int = new Image(); img_construccion_light_int.src = "images/marcas_interior_over_09.jpg";
   
  }