今天搞了一个回到顶部的JS JQ功能
- (function($){
- $.fn.survey=function(options){
- var defaults={width:"298",height:"207"};
- var options=$.extend(defaults,options);
- if($.browser.msie){
- var ieVersion=parseInt($.browser.version)}
- //建立HTML
- var __feedCreat=function(){
- var feedHtml=$('<div id="pubFeedBack"></div>');
- feedHtml.html('<a href="#top" id="backTop"><i></i>\u8fd4\u56de\u9876\u90e8</a><a href="#" id="callSurvey"><i></i>\u610f\u89c1\u53cd\u9988</a>');
- $("body").append(feedHtml);
- __ie6Fixed()
- };
- //绑定事件
- var __initEvent=function(){
- $(window).resize(function(){
- var winW=$(this).width();
- if(winW<=1124){$("#pubFeedBack").hide()}
- else{$("#pubFeedBack").show()}
- });
- $(window).bind("scroll",function(){
- if($(this).scrollTop()>50){
- $("#backTop").fadeIn().css({"display":"block"})
- }
- else{$("#backTop").fadeOut().css({"display":""})}
- });
- $("#backTop").bind("click",function(e){
- e.preventDefault();
- $("html,body").scrollTop(0)});
- };
- //回到顶部
- var __tip=function(type,tipText){
- var surveyTip=$("#D_SurveyTip"),surveyMask=$("#D_SurveyMask");
- if(!surveyTip||!surveyMask){return}
- surveyTip.removeClass("warning success").addClass(type).html(tipText);
- surveyMask.css("display","block");
- surveyTip.css("display","block");
- setTimeout(function(){
- surveyMask.css("display","none"); surveyTip.css("display","none")},1000)
- };
- //ie6兼容
- var __ie6Fixed=function(){
- if(ieVersion!==6){return}
- var surveyBox=$("#D_SurveyBox");
- var pubFeedBack=$("#pubFeedBack");
- if(!surveyBox||!pubFeedBack)
- {
- return
- }
- $(window).bind("scroll",function(){
- var h=$(window).height(),st=$(window).scrollTop(),_top=h+st-options.height; var _top1=h+st-pubFeedBack.height()-15;surveyBox.css("top",_top+"px");
- pubFeedBack.css("top",_top1+"px")
- })
- };
- //开始执行
- if(screen.width>=1280)
- {
- (function(){
- __feedCreat(); __initEvent() })()
- }
- }
- })(jQuery);
- window.onerror=function(){return false};
- if($.isFunction($(document).survey)){$(document).survey()}
- #backTop i,#callSurvey i{background:url(survey.png) no-repeat;}
- #pubFeedBack{position:fixed;_position:absolute;right:15px;bottom:15px;width:54px;font-size:12px;}
- #backTop,#callSurvey{display:block;width:52px;padding:1px;height:56px;line-height:22px;text-align:center;color:#fff;text-decoration:none;}
- #backTop{display:none;background:#999;}
- #backTop:hover{background:#ccc;zoom:1;text-decoration:none;color:#fff;}
- #backTop i{display:block;width:25px;height:13px;margin:14px auto 8px;background-position:-63px 0;}
- #callSurvey{margin-top:1px;background:#3687d9;}
- #callSurvey:hover{background:#66a4e3;zoom:1;text-decoration:none;color:#fff;}
- #callSurvey i{display:block;width:26px;height:25px;margin:9px auto 0;background-position:0 0;}
- #callSurvey:hover i{background-position:-30px 0;}