new_member = null;
	category = null;
	adults = null;
	children = null;		
  items = null;
	top_racks = null;
	middle_racks = null;
	bottom_racks = null;
	minnow_racks = null;
	
	function set_nm(nm) {
		new_member = nm;
		$('member_category').show();
		caltotal();
	}
	
	function set_cat(c) {
		if(c == 'family') {
			$('family_members').show();
		} else {
			$('family_members').hide();
		}
		
		category = c;
		caltotal();
	}
	
	function set_adults(a) {
		adults = a;
		caltotal();
	}
	
	function set_children(c) {
		children = c;
		caltotal();
	}
	
	function set_top_racks(tr) {
	  top_racks = tr;
	  $('middle_racks').show();
	  caltotal();
	}

	function set_middle_racks(tr) {
	  middle_racks = tr;
	  $('bottom_racks').show();
	  caltotal();
	}

	function set_bottom_racks(tr) {
	  bottom_racks = tr;
	  $('minnow_racks').show();
	  caltotal();
	}

	function set_minnow_racks(tr) {
	  minnow_racks = tr;
	  caltotal();
	}
	
	function category_and_family_setup() {
	  result = category != null && (category != 'family' || (category == 'family' && adults != null && children != null))
	  if(result) {
	    $('racking_fees').show();
	  } else {
	    $('racking_fees').hide();
	  }
	  return result;
	}
	
	function racking_choosen() {
    return top_racks != null && middle_racks != null && bottom_racks != null && minnow_racks != null;
	}
	
	function top_rack_fees() {
		return 115 * top_racks;
	}
	
	function middle_rack_fees() {
		return 150 * middle_racks;
	}

	function bottom_rack_fees() {
		return 190 * bottom_racks;
	}

	function minnow_rack_fees() {
		return 75 * minnow_racks;
	}
	
	function racking_fees() {
	  return top_rack_fees() + middle_rack_fees() + bottom_rack_fees() + minnow_rack_fees();
	}

	function caltotal() {		  
		if(new_member != null && category_and_family_setup() && racking_choosen()) {
			total = 0;
      description = "";

			total += joining_fee();
			total += annual_subcription();
			total += vy_levy();
			total += racking_fees();
					
			if(new_member) {
			  description = 'joining ($' + joining_fee() + ') + '
		  } else {
		    description = '';
		  }
		  
		  description += category + ' ($' + (annual_subcription() + vy_levy()) + ')'
		  
		  if(top_racks > 0) {
		    description += ' + ' + top_racks + ' top ($' + top_rack_fees() + ')'
		  }

		  if(middle_racks > 0) {
		    description += ' + ' + middle_racks + ' middle ($' + middle_rack_fees() + ')'
		  }

		  if(bottom_racks > 0) {
		    description += ' + ' + bottom_racks + ' bottom ($' + bottom_rack_fees() + ')'
		  }

		  if(minnow_racks > 0) {
		    description += ' + ' + minnow_racks + ' minnow ($' + minnow_rack_fees() + ')'
		  }
					
			$('total_output').innerHTML = '$' + total;
			$('total_description').innerHTML = description
			$('payal_button').show();
			$('paypal_item_name').value = description
			$('paypal_value').value = total
		} else {
			$('total_output').innerHTML = '(waiting for selections)';
			$('total_description').innerHTML = ''
			$('payal_button').hide();
		}
	}
	
	function joining_fee() {
		if(new_member) {
			switch(category) {
				case 'family':
				case 'senior':
					return 75;
				case 'junior':
				case 'student':
				case 'pensioner':
					return 30;
				case 'associate':
					return 10
			}
		} else {
			return 0;
		}
	}
	
	function annual_subcription() {
		switch(category) {
			case 'family':
				return 360;
			case 'senior':
				return 235;
			case 'junior':
				return 100;
			case 'student':
				return 150;
			case 'pensioner':
				return 150;
			case 'associate':
				return 50;
		}
	}

	function vy_levy() {
		switch(category) {
			case 'family':
				return 0.00 * adults + 0.00 * children;
			case 'senior':
				return 0.00;
			case 'junior':
				return 0.00;
			case 'student':
				return 0.00;
			case 'pensioner':
				return 0.00;
			case 'associate':
				return 0;
		}
	}