/*  * zoomCheck  */ jQuery(function($){   var dCheck = $("#zoomCheck");   if(dCheck.size() != 0){     return;   }   dCheck = $("<span></span>").attr('id',"zoomCheck").css({     position :'fixed',     left : '5px'   }).hide().appendTo('body');   var time;   time = setInterval(function(){     dCheck.show();     var left = dCheck.position().left;     dCheck.hide();     if(left != 5){       clearInterval(time);       alert('你的页面处于缩放状态，页面显示会有问题，请设置为正常状态。windows:ctrl+0   mac:command+0');     }   },2000); });