$(document).ready(function() {
		$('ul.selectNav').children('li:last-child').prev('li').addClass('last');
		$('ul.selectNav').children('li:first-child').addClass('tp_1');
		$('ul.selectNav').children('li:last-child').addClass('tp_2');
		$('ul.selectNav').hide();
		var num = $('ul.mainNav').children('li').length;
		for (var i=0; i<num; i++) { $('ul.mainNav').children('li').eq(i).attr('id','nav'+(i+1));}
		
		$('ul.mainNav').children('li').hover(
			function(event) {
				$(this).children('ul.selectNav').fadeIn('fast');
				event.stopPropagation();
			},
			function(event) {
				$(this).children('ul.selectNav').fadeOut('fast');
				event.stopPropagation();
			}
		);
		$('#txtbox').setScroll(
				{img:'../images/scroll_bk.gif',width:10},//background-image and width
				{img:'../images/scroll_arrow_up.gif',height:5},//up
				{img:'../images/scroll_arrow_down.gif',height:5},//down
				{img:'../images/scroll_bar.gif',height:74}//bar
		);	
});