www.gusucode.com > 1：【198-3253】织梦dede企业公司行业网站通用模板（带手机版） > 1：【198-3253】织梦dede企业公司行业网站通用模板（带手机版）/www5/style/js/jquery.lazyload.js

    (function($){$.fn.lazyload=function(options){var settings={threshold:0,failurelimit:0,event:"scroll",effect:"show",container:window};if(options){$.extend(settings,options)}





var elements=this;if("scroll"==settings.event){$(settings.container).bind("scroll",function(event){var counter=0;elements.each(function(){if(!$.belowthefold(this,settings)&&!$.rightoffold(this,settings)){$(this).trigger("appear")}else{if(counter++>settings.failurelimit){return false}}});var temp=$.grep(elements,function(element){return!element.loaded});elements=$(temp)})}





return this.each(function(){var self=this;$(self).attr("original",$(self).attr("src"));if("scroll"!=settings.event||$.belowthefold(self,settings)||$.rightoffold(self,settings)){if(settings.placeholder){$(self).attr("src",settings.placeholder)}else{$(self).removeAttr("src")}





self.loaded=false}else{self.loaded=true}





$(self).one("appear",function(){if(!this.loaded){$("<img />").bind("load",function(){$(self).hide().attr("src",$(self).attr("original"))[settings.effect](settings.effectspeed);self.loaded=true}).attr("src",$(self).attr("original"))}});if("scroll"!=settings.event){$(self).bind(settings.event,function(event){if(!self.loaded){$(self).trigger("appear")}})}})};$.belowthefold=function(element,settings){if(settings.container===undefined||settings.container===window){var fold=$(window).height()+ $(window).scrollTop()}else{var fold=$(settings.container).offset().top+ $(settings.container).height()}





return fold<=$(element).offset().top- settings.threshold};$.rightoffold=function(element,settings){if(settings.container===undefined||settings.container===window){var fold=$(window).width()+ $(window).scrollLeft()}else{var fold=$(settings.container).offset().left+ $(settings.container).width()}





return fold<=$(element).offset().left- settings.threshold};$.extend($.expr[':'],{"below-the-fold":"$.belowthefold(a, {threshold : 0, container: window})","above-the-fold":"!$.belowthefold(a, {threshold : 0, container: window})","right-of-fold":"$.rightoffold(a, {threshold : 0, container: window})","left-of-fold":"!$.rightoffold(a, {threshold : 0, container: window})"})})(jQuery);function checkbrowse(){var ua=navigator.userAgent.toLowerCase();var is=(ua.match(/\b(chrome|opera|safari|msie|firefox)\b/)||['','mozilla'])[1];var r='(?:'+ is+'|version)[\\/: ]([\\d.]+)';var v=(ua.match(new RegExp(r))||[])[1];jQuery.browser.is=is;jQuery.browser.ver=v;return{'is':jQuery.browser.is,'ver':jQuery.browser.ver}}





var public=checkbrowse();var showeffect="";if((public['is']=='msie'&&public['ver']<8.0)){showeffect="show"}else{showeffect="fadeIn"}