摘要:
1 <script > 2 $(function(){ 3 $(window).bind("scroll", function(){ 4 var sh = $(document).scrollTop(); 5 if(isie6Fun()){ 6 var wh = $(window).height(); 7 var ssss= wh*0.8+sh; 8 $("#returntop").css("top",ssss+"px"); 9 }10 if($("#returntop").is(& 阅读全文