// JavaScript Document

$(document).ready(function(){
	$('.menu').each(function(){
		$(this).hover(function(){
			$(this).attr('background','img/front/pro_center_08.jpg');
		},function(){
      $(this).attr('background','');
    });							  
	});
			$('.productlink').hover(function(){
				switch($(this).attr('id'))
				{
					case 'hczz':
						$('#hczz1').html('<img src="img/front/jt.jpg" width="10" height="9"/>');
						break;
					case 'dmdzz':
						$('#dmdzz1').html('<img src="img/front/jt.jpg" width="10" height="9"/>');
						break;
					case 'cpbz':
						$('#cpbz1').html('<img src="img/front/jt.jpg" width="10" height="9"/>');
						break;
					case 'sbbq':
						$('#sbbq1').html('<img src="img/front/jt.jpg" width="10" height="9"/>');
						break;
					case 'zkcp':
						$('#zkcp1').html('<img src="img/front/jt.jpg" width="10" height="9"/>');
						break;
					case 'hbzz':
						$('#hbzz1').html('<img src="img/front/jt.jpg" width="10" height="9"/>');
						break;
					case 'cssms':
						$('#cssms1').html('<img src="img/front/jt.jpg" width="10" height="9"/>');
						break;
					case 'qtcp':
						$('#qtcp1').html('<img src="img/front/jt.jpg" width="10" height="9"/>');
						break;
				}
			},function(){
				switch($(this).attr('id'))
				{
					case 'hczz':
						$('#hczz1').html('');
						break;
					case 'dmdzz':
						$('#dmdzz1').html('');
						break;
					case 'cpbz':
						$('#cpbz1').html('');
						break;
					case 'sbbq':
						$('#sbbq1').html('');
						break;
					case 'zkcp':
						$('#zkcp1').html('');
						break;
					case 'hbzz':
						$('#hbzz1').html('');
						break;
					case 'cssms':
						$('#cssms1').html('');
						break;
					case 'qtcp':
						$('#qtcp1').html('');
						break;
				}
			});								
      $("#news1img").click(function(){
        $(this).attr('src','img/front/index_04.jpg');
        $("#news2img").attr('src','img/front/index_05.jpg');
        $("#news1").css('display','block');
        $("#news2").css('display','none');
      });
      $("#news2img").click(function(){
        $(this).attr('src','img/front/index_08.jpg');
        $("#news1img").attr('src','img/front/index_09.jpg');
        $("#news1").css('display','none');
        $("#news2").css('display','block');
      });
});





$.fn.infiniteCarousel = function () {

    function repeat(str, num) {
        return new Array( num + 1 ).join( str );
    }
  
    return this.each(function () {
        var $wrapper = $('> div', this).css('overflow', 'hidden'),
            $slider = $wrapper.find('> ul'),
            $items = $slider.find('> li'),
            $single = $items.filter(':first'),
            
            singleWidth = $single.outerWidth(), 
            visible = Math.ceil($wrapper.innerWidth() / singleWidth), // note: doesn't include padding or border
            currentPage = 1,
            pages = Math.ceil($items.length / visible);            


        // 1. Pad so that 'visible' number will always be seen, otherwise create empty items
        if (($items.length % visible) != 0) {
            $slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
            $items = $slider.find('> li');
        }

        // 2. Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
        $items.filter(':first').before($items.slice(- visible).clone().addClass('cloned'));
        $items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
        $items = $slider.find('> li'); // reselect
        
        // 3. Set the left position to the first 'real' item
        $wrapper.scrollLeft(singleWidth * visible);
        
        // 4. paging function
        function gotoPage(page) {
            var dir = page < currentPage ? -1 : 1,
                n = Math.abs(currentPage - page),
                left = singleWidth * dir * visible * n;
            
            $wrapper.filter(':not(:animated)').animate({
                scrollLeft : '+=' + left
            }, 500, function () {
                if (page == 0) {
                    $wrapper.scrollLeft(singleWidth * visible * pages);
                    page = pages;
                } else if (page > pages) {
                    $wrapper.scrollLeft(singleWidth * visible);
                    // reset back to start position
                    page = 1;
                } 

                currentPage = page;
            });                
            
            return false;
        }
        
        $wrapper.after('<a class="arrow back">&lt;</a><a class="arrow forward">&gt;</a>');
        
        // 5. Bind to the forward and back buttons
        $('a.back', this).click(function () {
            return gotoPage(currentPage - 1);                
        });
        
        $('a.forward', this).click(function () {
            return gotoPage(currentPage + 1);
        });
        
        // create a public interface to move to a specific page
        $(this).bind('goto', function (event, page) {
            gotoPage(page);
        });
    });  
};

$(document).ready(function () {
  $('.infiniteCarousel').infiniteCarousel();
});