$(function(){var showIndex=1;function showbg(b){var a=$("#flashs .btn span").index($("#flashs .btn span.cur"));if(a<0){a=0}$("#flashs .btn span.cur").css("opacity",0.7).removeClass("cur");$("#flashbg"+a).css({opacity:0,"z-index":1});$("#flashbg"+showIndex).css({"z-index":2});$("#flashbg"+showIndex).animate({opacity:1},500);$("#flashs .btn span").eq(showIndex).css("opacity",1).addClass("cur")}var h=$("#flashs .bgitem").css("opacity",0).length;var btn="<div class='btn'>";for(var i=0;i<h;i++){btn+="<span>"+(i+1)+"</span>"}btn+="</div>";$("#flashs").append(btn);$("#flashs .btn span").css("opacity",0.7).mouseenter(function(){showIndex=$("#flashs .btn span").index(this);showbg(showIndex)}).eq(0).trigger("mouseenter");$("#flashs").hover(function(){clearInterval(picTimer)},function(){picTimer=setInterval(function(){showIndex++;if(showIndex==h){showIndex=0}showbg(showIndex)},3000)}).eq(0).trigger("mouseleave");});