function fillCategory(){ 
 // this function is used to fill the category list on load
 addOption(document.drop_list.Category, "0", "Seleccionar Categoria");
addOption(document.drop_list.SubCat, "0", "Seleccionar Subcategoria");
addOption(document.drop_list.Category, "1", "Compra y Venta", "");
addOption(document.drop_list.Category, "2", "Encuentros", "");
addOption(document.drop_list.Category, "3", "Vehiculos", "");
addOption(document.drop_list.Category, "4", "Inmuebles", "");
addOption(document.drop_list.Category, "5", "Clases y Cursos", "");
addOption(document.drop_list.Category, "6", "Empleos", "");
addOption(document.drop_list.Category, "73", "Servicios", "");
addOption(document.drop_list.SubCat, "7", "Mascotas y Animales");
addOption(document.drop_list.SubCat, "8", "Celulares y Telefonos");
addOption(document.drop_list.SubCat, "9", "Antiguedades");
addOption(document.drop_list.SubCat, "10", "Computadoras y Programas");
addOption(document.drop_list.SubCat, "11", "Deportes y Fitness");
addOption(document.drop_list.SubCat, "12", "Peliculas en DVD");
addOption(document.drop_list.SubCat, "13", "Electrodomesticos");
addOption(document.drop_list.SubCat, "14", "Fotografia");
addOption(document.drop_list.SubCat, "15", "Sonido");
addOption(document.drop_list.SubCat, "16", "Hogar, Jardin, Muebles");
addOption(document.drop_list.SubCat, "17", "Instrumentos Musicales");
addOption(document.drop_list.SubCat, "18", "Joyas y Relojes");
addOption(document.drop_list.SubCat, "19", "Juguetes y Juegos");
addOption(document.drop_list.SubCat, "20", "Libros, Revistas y Diarios");
addOption(document.drop_list.SubCat, "21", "Ropa Bebes y Ninos");
addOption(document.drop_list.SubCat, "22", "Salud y Belleza");
addOption(document.drop_list.SubCat, "23", "Video Juegos");
addOption(document.drop_list.SubCat, "24", "Canjes");
addOption(document.drop_list.SubCat, "25", "Otras");
addOption(document.drop_list.SubCat, "82", "Viajes y Turismo");
addOption(document.drop_list.SubCat, "83", "Ropa Para Hombre");
addOption(document.drop_list.SubCat, "84", "Ropa Para Mujer");
}

function SelectSubCat(){
// ON selection of category this function will work

removeAllOptions(document.drop_list.SubCat);
//addOption(document.drop_list.SubCat, "", "SubCat", "");
if(document.drop_list.Category.value == '1'){
addOption(document.drop_list.SubCat, "0", "Seleccionar Subcategoria");
addOption(document.drop_list.SubCat, "7", "Mascotas y Animales");
addOption(document.drop_list.SubCat, "8", "Celulares y Telefonos");
addOption(document.drop_list.SubCat, "9", "Antiguedades");
addOption(document.drop_list.SubCat, "10", "Computadoras y Programas");
addOption(document.drop_list.SubCat, "11", "Deportes y Fitness");
addOption(document.drop_list.SubCat, "12", "Peliculas en DVD");
addOption(document.drop_list.SubCat, "13", "Electrodomesticos");
addOption(document.drop_list.SubCat, "14", "Fotografia");
addOption(document.drop_list.SubCat, "15", "Sonido");
addOption(document.drop_list.SubCat, "16", "Hogar, Jardin, Muebles");
addOption(document.drop_list.SubCat, "17", "Instrumentos Musicales");
addOption(document.drop_list.SubCat, "18", "Joyas y Relojes");
addOption(document.drop_list.SubCat, "19", "Juguetes y Juegos");
addOption(document.drop_list.SubCat, "20", "Libros, Revistas y Diarios");
addOption(document.drop_list.SubCat, "21", "Ropa Bebes y Ninos");
addOption(document.drop_list.SubCat, "22", "Salud y Belleza");
addOption(document.drop_list.SubCat, "23", "Video Juegos");
addOption(document.drop_list.SubCat, "24", "Canjes");
addOption(document.drop_list.SubCat, "25", "Otras");
addOption(document.drop_list.SubCat, "82", "Viajes y Turismo");
addOption(document.drop_list.SubCat, "83", "Ropa Para Hombre");
addOption(document.drop_list.SubCat, "84", "Ropa Para Mujer");
}
if(document.drop_list.Category.value == '2'){
addOption(document.drop_list.SubCat, "0", "Seleccionar Subcategoria");
addOption(document.drop_list.SubCat, "26", "Hombre busca Mujer");
addOption(document.drop_list.SubCat, "27", "Mujer busca Hombre");
addOption(document.drop_list.SubCat, "28", "Mujer busca Mujer");
addOption(document.drop_list.SubCat, "29", "Hombre busca Hombre");
addOption(document.drop_list.SubCat, "30", "Pareja busca Mujer");
addOption(document.drop_list.SubCat, "31", "Pareja busca Pareja");
addOption(document.drop_list.SubCat, "32", "Pareja busca Hombre");
}
if(document.drop_list.Category.value == '3'){
addOption(document.drop_list.SubCat, "0", "Seleccionar Subcategoria");
addOption(document.drop_list.SubCat, "33", "Alquiler de Autos");
addOption(document.drop_list.SubCat, "34", "Venta de Autos");
addOption(document.drop_list.SubCat, "35", "Lanchas y Barcos");
addOption(document.drop_list.SubCat, "36", "Motos y Cuatriciclos");
addOption(document.drop_list.SubCat, "37", "Bicicletas");
addOption(document.drop_list.SubCat, "38", "Otros");
addOption(document.drop_list.SubCat, "39", "Busco Auto");
}
if(document.drop_list.Category.value == '4'){
addOption(document.drop_list.SubCat, "0", "Seleccionar Subcategoria");
addOption(document.drop_list.SubCat, "40", "Alquiler Temporario");
addOption(document.drop_list.SubCat, "41", "Alquiler de Departamentos");
addOption(document.drop_list.SubCat, "42", "Venta de Departamentos");
addOption(document.drop_list.SubCat, "43", "Alquiler de Oficinas y locales");
addOption(document.drop_list.SubCat, "44", "Venta de Oficinas y Locales");
addOption(document.drop_list.SubCat, "45", "Alquiler y Venta de Campos");
addOption(document.drop_list.SubCat, "46", "Estacionamientos");
addOption(document.drop_list.SubCat, "47", "Lotes");
addOption(document.drop_list.SubCat, "80", "Alquiler de Casas");
addOption(document.drop_list.SubCat, "81", "Venta de Casas");
}
if(document.drop_list.Category.value == '5'){
addOption(document.drop_list.SubCat, "0", "Seleccionar Subcategoria");
addOption(document.drop_list.SubCat, "48", "Clases de Canto y Musica");
addOption(document.drop_list.SubCat, "49", "Profesores Particulares");
addOption(document.drop_list.SubCat, "50", "Clases de Idiomas");
addOption(document.drop_list.SubCat, "51", "Cursos de Computacion");
addOption(document.drop_list.SubCat, "52", "Clases de Danza,Teatro y Cine");
addOption(document.drop_list.SubCat, "53", "Otras clases y cursos");
}
if(document.drop_list.Category.value == '6'){
addOption(document.drop_list.SubCat, "0", "Seleccionar Subcategoria");
addOption(document.drop_list.SubCat, "54", "Callcenter, Telemarketers");
addOption(document.drop_list.SubCat, "55", "Secretarias");
addOption(document.drop_list.SubCat, "56", "Cadetes, Mensajeria");
addOption(document.drop_list.SubCat, "57", "Vendedor");
addOption(document.drop_list.SubCat, "58", "Relaciones Publicas");
addOption(document.drop_list.SubCat, "59", "Diseno, Marketing y Publicidad");
addOption(document.drop_list.SubCat, "60", "Promotoras y Eventos");
addOption(document.drop_list.SubCat, "61", "Construccion, Obras");
addOption(document.drop_list.SubCat, "62", "Contadores");
addOption(document.drop_list.SubCat, "63", "Abogados");
addOption(document.drop_list.SubCat, "64", "Programadores");
addOption(document.drop_list.SubCat, "65", "Profesores");
addOption(document.drop_list.SubCat, "66", "Ingenieros");
addOption(document.drop_list.SubCat, "67", "Arquitectos");
addOption(document.drop_list.SubCat, "68", "Periodistas");
addOption(document.drop_list.SubCat, "69", "Doctores, Enfermeria");
addOption(document.drop_list.SubCat, "70", "Restaurantes y Pubs");
addOption(document.drop_list.SubCat, "71", "Teletrabajo");
addOption(document.drop_list.SubCat, "72", "Otros trabajos");
}
if(document.drop_list.Category.value == '73'){
addOption(document.drop_list.SubCat, "0", "Seleccionar Subcategoria");
addOption(document.drop_list.SubCat, "74", "Internet / Multimedia");
addOption(document.drop_list.SubCat, "75", "Editorial / Traducciones");
addOption(document.drop_list.SubCat, "76", "Shows / Animaciones, Eventos");
addOption(document.drop_list.SubCat, "77", "Hogar / Reparaciones");
addOption(document.drop_list.SubCat, "78", "Fletes y Mudanzas");
addOption(document.drop_list.SubCat, "79", "Otros Servicios");
}

}
////////////////// 

function removeAllOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
		//selectbox.options.remove(i);
		selectbox.remove(i);
	}
}


function addOption(selectbox, value, text )
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;

	selectbox.options.add(optn);
}