function fillCategory(){ 
 // this function is used to fill the category list on load
addOption(document.drop_list.region, "", "All", "");
addOption(document.drop_list.region, "Abruzzo", "Abruzzo", "");
addOption(document.drop_list.region, "Apulia", "Apulia", "");
addOption(document.drop_list.region, "Lazio", "Lazio", "");
addOption(document.drop_list.region, "Marche", "Marche", "");
addOption(document.drop_list.region, "Molise", "Molise", "");
addOption(document.drop_list.region, "Tuscany", "Tuscany", "");
}

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

removeAllOptions(document.drop_list.province);
addOption(document.drop_list.province, "", "All", "");

if(document.drop_list.region.value == ''){
addOption(document.drop_list.province,"", "All");
}
if(document.drop_list.region.value == 'Abruzzo'){
addOption(document.drop_list.province,"Chieti", "Chieti");
addOption(document.drop_list.province,"L`Aquila", "L`Aquila");
addOption(document.drop_list.province,"Pescara", "Pescara");
addOption(document.drop_list.province,"Teramo", "Teramo");
}
if(document.drop_list.region.value == 'Apulia'){
addOption(document.drop_list.province,"Bari", "Bari");
addOption(document.drop_list.province,"Barletta-Andria-Trani", "Barletta-Andria-Trani");
addOption(document.drop_list.province,"Brindisi", "Brindisi", "");
addOption(document.drop_list.province,"Foggia", "Foggia", "");
addOption(document.drop_list.province,"Lecce", "Lecce", "");
addOption(document.drop_list.province,"Taranto", "Taranto", "");
}
if(document.drop_list.region.value == 'Lazio'){
addOption(document.drop_list.province,"Frosinone", "Frosinone");
addOption(document.drop_list.province,"Latina", "Latina");
addOption(document.drop_list.province,"Rieti", "Rieti");
addOption(document.drop_list.province,"Roma", "Roma");
addOption(document.drop_list.province,"Viterbo", "Viterbo");
}
if(document.drop_list.region.value == 'Marche'){
addOption(document.drop_list.province,"Ancona", "Ancona");
addOption(document.drop_list.province,"Ascoli Piceno", "Ascoli Piceno");
addOption(document.drop_list.province,"Fermo", "Fermo");
addOption(document.drop_list.province,"Macerata", "Macerata");
addOption(document.drop_list.province,"Pesaro-Urbino", "Pesaro-Urbino");
}
if(document.drop_list.region.value == 'Molise'){
addOption(document.drop_list.province,"Campobasso", "Campobasso");
addOption(document.drop_list.province,"Isernia", "Isernia");
}
if(document.drop_list.region.value == 'Tuscany'){
addOption(document.drop_list.province,"Arezzo", "Arezzo");
addOption(document.drop_list.province,"Firenze", "Firenze");
addOption(document.drop_list.province,"Grosseto", "Grosseto");
addOption(document.drop_list.province,"Livorno", "Livorno");
addOption(document.drop_list.province,"Lucca", "Lucca");
addOption(document.drop_list.province,"Massa e Carrara", "Massa e Carrara");
addOption(document.drop_list.province,"Pisa", "Pisa");
addOption(document.drop_list.province,"Pistoia", "Pistoia");
addOption(document.drop_list.province,"Prato", "Prato");
addOption(document.drop_list.province,"Siena", "Siena");
}

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

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);
}