隔时显示下一页

var num = 0;
var $content = $(".div");
var loopDiv = function(){
var len = $content.find("div").length;
$content.find("div").hide();
$content.find("div").eq(num).show();
num = num + 1 == len ? 0 : num + 1;
t = setTimeout(function(){
loopDiv();
},5000);
};
loopDiv();
$content.hover(function(){
learInterval(t);
});
$content.mouseleave(function(){
loopDiv();
});