function setSrollBar(){var barHeight=$("#box").height()/$("#box")[0].scrollHeight;if(barHeight>=1){$("#scrollBar").css("display","none")}else{$("#scrollBar").css("display","block");$("#scrollBar").css("height",barHeight*100+"%");$("#box").on("scroll",function(){$("#scrollBar").css("top",(barHeight*$("#box").scrollTop())+"px")});$("#scrollBar").on("mousedown",function(e){e.stopPropagation();var start=e.pageY;var orginPostion=$("#scrollBar").css("top");$(document).mousemove(function(event){var end=event.pageY;var move=end-start;var currPostion=parseFloat(orginPostion)+(end-start);if(currPostion<=0){$("#scrollBar").css("top","0px")}else{if(currPostion+parseFloat($("#scrollBar").css("height"))>=parseFloat($("#warp").css("height"))){$("#scrollBar").css("top",(parseFloat($("#warp").css("height"))-parseFloat($("#scrollBar").css("height")))+"px")}else{$("#scrollBar").css("top",currPostion+"px");$("#box").scrollTop(currPostion/barHeight)}}});$(document).mouseup(function(event){$(document).off("mousemove")})})}};