var dropdown = new (function() {
	var select_class = 'styledbig';	
	
	this.init = function() {
		var select_list = document.getElementsByTagName('select');
		for (var i = 0; i < select_list.length; i++) {
			var select = select_list[i];
			
			if (select.className == select_class) {
				var select_mask = select.previousSibling;
				while (select_mask.nodeName != 'SPAN') {
					select_mask = select_mask.previousSibling;
				}
				
				(function(select, select_mask) {
					select.onchange = function() {
						select_mask.innerHTML = this.options[this.selectedIndex].text;
					};
				})(select, select_mask);
			}
		}
	};
});