37 lines
971 B
JavaScript
37 lines
971 B
JavaScript
//javascript Document
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function chinaz(){
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this.init();
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}
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chinaz.prototype = {
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constructor: chinaz,
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init: function(){
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this._initBackTop();
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},
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_initBackTop: function(){
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var $backTop = this.$backTop = $('<div class="cbbfixed">'+
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'<a class="gotop cbbtn">'+
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'<span class="up-icon"></span>'+
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'</a>'+
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'</div>');
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$('body').append($backTop);
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$backTop.click(function(){
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$("html, body").animate({
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scrollTop: 0
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}, 120);
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});
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var timmer = null;
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$(window).bind("scroll",function() {
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var d = $(document).scrollTop(),
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e = $(window).height();
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0 < d ? $backTop.css("bottom", "10px") : $backTop.css("bottom", "-90px");
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clearTimeout(timmer);
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timmer = setTimeout(function() {
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clearTimeout(timmer)
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},100);
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});
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}
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}
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var chinaz = new chinaz(); |