function setFirst () {
	var form = document.chooseCat;

}

function setSecond ( form ) {
	var mId = form.mCat[ form.mCat.selectedIndex ].value;

	setChosenCategory( form, mId );

	tScat = form.sCat;
	tScat.options.length = 1;
	tScat[ 0 ].text = "Select a Category";
	tScat[ 0 ].value = "";

	oScat = form.tCat;
	oScat.options.length = 0;
	oScat.options.length = 1;
	oScat[ 0 ].text = "";
	oScat[ 0 ].value= "";

	var t = "";
	var i = 1;
	for ( var sId in data[ mId ] ) {
		tScat.options.length = i + 1;
		tScat[ i ].value = sId;
		tScat[ i ].text = catMap[ sId ];
		i++;
	}
}

function setChosenCategory ( form, id ) {
	form.chosenCategory.value = id;
}

function setMemberChosenCategoryDropdownValue( cId ) {
	var form = document.choseCategory;
	form.chosenCategory.value=cId;
	form.submit();
}

function setThird( form ) {
	var mId = form.mCat[ form.mCat.selectedIndex ].value;
	var sId = form.sCat[ form.sCat.selectedIndex ].value;

	setChosenCategory( form, sId );

	tTcat = form.tCat;
	tTcat.options.length = 1;
	tTcat[ 0 ].text = "Select a Category";
	tTcat[ 0 ].value = "";

	var t = "";
	var i = 1;
	for ( var tId in data[ mId ][ sId ] ) {
		tTcat.options.length = i + 1;
		tTcat[ i ].value = tId;
		tTcat[ i ].text = catMap[ tId ];
		i++;
	}
}

function updateProvinceDropdown( form, cId ) {
	var provDD = form.provinceId;
	if ( provDD ) {
		provDD.length=0;
		provDD.length=1;
		provDD.options[0] = new Option( "Select a Province", "" );
		for( provId in provinceList[ cId ] ) {
			provDD.options[provDD.length] = new Option( provinceList[ cId ][ provId ], provId );
		}
		zeroRegionDropdown( form );
	}
}

function updateRegionDropdown( form, pId ) {
	var cId = form.countryId[ form.countryId.selectedIndex ].value;
	var regDD = form.regionId;
	if ( !regDD ) {
		regDD = form.vRegionId;
	}

	if ( regDD ) {
		regDD.length=0;
		regDD.length=1;
		regDD.options[0] = new Option( "Select a Region", "" );
		for( regId in regionList[ cId ][ pId ] ) {
			regDD.options[regDD.length] = new Option( regionList[ cId ][ pId ][ regId ], regId );
		}
		zeroCityDropdown( form );
	}
}

function updateCityDropdown( form, rId ) {
	var cId = form.countryId[ form.countryId.selectedIndex ].value;
	var pId = form.provinceId[ form.provinceId.selectedIndex ].value;
	var rId = form.regionId[ form.regionId.selectedIndex ].value;

	var citDD = form.cityId;
	if ( citDD ) {
		citDD.length=0;
		citDD.length=1;
		citDD.options[0] = new Option( "Select a Region", "" );

		for( citId in cityList[ cId ][ pId ][ rId ] ) {
			citDD.options[citDD.length] = new Option( cityList[ cId ][ pId ][ rId ][ citId ], citId );
		}
	}
}

function zeroProvinceDropdown( form ) {
	if ( form.provinceId ) {
		var provDD = form.provinceId;
			provDD.length=0;
			provDD.length=1;
			provDD.options[0] = new Option( "Select a province", "" );
		zeroRegionDropdown( form );
	}
}

function zeroRegionDropdown( form ) {
	if ( form.regionId ) {
		var regDD = form.regionId;
			regDD.length=1;
			regDD.options[0] = new Option( "Select a region", "" );
		zeroCityDropdown( form );
	}
	return;
}

function zeroCityDropdown( form ) {
	if ( form.cityId ) {
		var cit = form.cityId;
			cit.length=1;
			cit.options[0] = new Option( "Select a city", "" );
		return;
	}
}