if($(_self).children(".jscroll-c").height()==null){
//添加內容框(div)
$(_self).wrapInner("<div class='jscroll-c' style='top:0px;z-index:9999;zoom:1;position:relative;'></div>");
//添加豎向滾動條
$(_self).append("<div class='jscroll-e' unselectable='on' style='height:97.5%;top:0px;right:0;-moz-user-select:none;position:absolute;overflow:hidden;z-index:10000;'><div class='jscroll-u' style='position:absolute;top:0px;width:100%;right:0;background:blue;overflow:hidden'></div><div class='jscroll-h' unselectable='on' style='background:green;position:absolute;left:0;-moz-user-select:none;border:1px solid'></div><div class='jscroll-d' style='position:absolute;bottom:0px;width:100%;left:0;background:blue;overflow:hidden'></div></div>");
//添加橫向滾動條
$(_self).append("<div class='jscroll-s' unselectable='on' style='width:180px;bottom:0px;left:0;-moz-user-select:none;position:absolute;overflow:hidden;z-index:10000;'><div class='jscroll-l' style='position:absolute;bottom:0px;height:100%;left:0;background:blue;overflow:hidden'></div><div class='jscroll-g' unselectable='on' style='height:100%;background:green;position:absolute;left:0;-moz-user-select:none;border:1px solid'></div><div class='jscroll-r' style='position:absolute;bottom:0px;height:100%;right:0;background:blue;overflow:hidden'></div></div>");
}