function show_options(object)
{
	var options = document.getElementById(object);
	
	if (options.style.display != 'block')
	{
		options.style.display = 'block';
	}
	else
	{
		options.style.display = 'none';
	}
}

function choose_color(color_id, color_title, dropdown_index)
{
	// Hide pannel.
	var options = document.getElementById('color_options_wrapper');
	
	options.style.display = 'none';
	
	// Edit color image and title.
	var image = document.getElementById('chosen_option_image');
	
	image.src = 'products_imgs/colors/'+color_id+'.jpg';
	
	var title = document.getElementById('chosen_option_title');
	
	title.innerHTML = color_title;
	
	// Edit hidden dropdown menu.
	var dropdown = document.getElementById('color_dropdown');
	
	dropdown.selectedIndex = dropdown_index;
}

function choose_addon(dropdown_index, addon_title, object)
{
	// Hide pannel.
	var options = document.getElementById('addon_'+object+'_options_wrapper');
	
	options.style.display = 'none';
	
	// Edit addon title.
	var title = document.getElementById('chosen_'+object+'_addon');
	
	title.innerHTML = addon_title;
	
	// Edit hidden dropdown menu.
	var dropdown = document.getElementById('addon_'+object);
	
	dropdown.selectedIndex = dropdown_index;
}