【Bug】OM-UI的omTab的默认样式，在非FF浏览器下无法滚动的问题
在做多个系统时都使用到了om-ui框架的系统，在非FF浏览器下页签上出现较多tab时无法自动滚动。经过多次测试，发现了apusic样式没有这个问题
于是查阅om-apusic.css，找出不同点，然后修改
以前的代码：

.om-tabs{ }.om-tabs .om-tabs-headers {      overflow: hidden;    padding: 2px 0 2px;    position: relative;    _width: 100%;    border:1px solid #86A3C4;    border-bottom-width:0px}.om-tabs .header-no-border{}.om-tabs .lileft{    /*background: url("images/tabs/om-tabs-left-default.png") no-repeat scroll 0 0 transparent;*/    display: inline-block;    float: left;    height: 27px;    line-height: 27px;    width: 8px;}.om-state-active .lileft{    /*background: url("images/tabs/om-tabs-left-hover.png") no-repeat scroll 0 0 transparent;*/    display: inline-block;    float: left;    height: 27px;    line-height: 27px;    width: 8px;}.om-tabs .liright{    /*background: url("images/tabs/om-tabs-right-default.png") no-repeat scroll 0 0 transparent;*/    display: inline-block;    float: left;    height: 27px;    line-height: 27px;    width: 3px;}.om-state-active .liright{    /*background: url("images/tabs/om-tabs-right-hover.png") no-repeat scroll 0 0 transparent;*/    display: inline-block;    float: left;    height: 27px;    line-height: 27px;    width: 8px;}.om-tabs .left-placeholder{    /*background: url("images/tabs/om-tabs-right-default.png") no-repeat scroll 0 0 transparent;*/    display: inline-block;    float: left;    height: 27px;    line-height: 27px;    width: 3px;    margin-left: -3px;}.om-tabs .right-placeholder{    /*background: url("images/tabs/om-tabs-left-default.png") no-repeat scroll 0 0 transparent;*/    display: inline-block;    float: left;    height: 27px;    line-height: 27px;    width: 8px;}.om-tabs-panels .om-panel-body{    background-color: white;}.om-tabs .om-tabs-headers .om-state-default a{    color: #1E1E1E;}.om-tabs .om-tabs-scroll-left {    background : url(images/tabs/om-tabs-scroll-left.gif) no-repeat;    background-position: 0px 0px !important;    height: 29px;    left: 0;    position: absolute;    top: 1px;    width: 18px;    cursor: pointer;    z-index: 100;}.om-tabs .om-tabs-scroll-right {    background : url(images/tabs/om-tabs-scroll-right.gif) no-repeat;    background-position: -18px 0px !important;    height: 29px;    right: 0;    position: absolute;    top: 1px;    width: 18px;    cursor: pointer;    z-index: 100;}.om-tabs .om-tabs-scroll-right:hover {    background : url(images/tabs/om-tabs-scroll-right.gif) no-repeat;    background-position: 0px 0px !important;}.om-tabs .om-tabs-scroll-left:hover {    background : url(images/tabs/om-tabs-scroll-left.gif) no-repeat;    background-position: -18px 0px !important;}.om-tabs .om-tabs-headers .om-tabs-scroll-disabled-left{    background  : none;     border-right:none;    cursor: default;}.om-tabs .om-tabs-headers .om-tabs-scroll-disabled-right {    background : none;    cursor: default;}.om-tabs .om-tabs-headers ul {    width: 5000px;    font-size: 12px;    margin: 0;    padding: 0 0 0 4px;    border-bottom: 1px solid #86A3C4;}.om-tabs .om-tabs-headers ul.om-tabs-scrollable {    padding : 0 23px;    position: relative;}.om-tabs .om-tabs-headers ul li {     background: url("images/tabs/om-tabs-bg-d.png") repeat-x scroll 0 0 #DCF0FB;    display: inline-block;    margin: 0 4px -1px 0;    padding: 0;    position: relative;    -moz-user-select: none;    float: left;}.om-tabs .om-tabs-headers ul li.om-state-hover a.om-tabs-inner{    color: #004098;}.om-tabs .om-tabs-headers ul li.om-tabs-activated {        border-color: #8DB2E3 #8DB2E3 #FFFFFF;    background: url("images/tabs/om-tabs-bg-a.png") repeat-x scroll 0 0 #FFFFFF;    font-weight: bold;}.om-tabs .om-tabs-headers ul li.om-tabs-activated a.om-tabs-inner {    color : black;    padding: 0 10px;}.om-tabs .om-tabs-headers ul li a.om-tabs-inner {    text-align: center;    text-decoration: none;    outline: none;    white-space: nowrap;    float: left;    padding: 0 10px;}.om-tabs .om-icon-close {    float: left;    margin: 0.4em 0.2em 0 0;    cursor: pointer;}.om-tabs .om-tabs-headers ul li a.om-icon-close{    background: url("images/tabs/om-tabs-closebtn.gif") no-repeat;    display: block;    height: 10px;    width: 10px;    margin: 7px 6px 0 0;}.om-tabs .om-tabs-headers ul li.om-state-hover a.om-icon-close{        background-position: 0 -9px;}.om-tabs .om-tabs-panels {    overflow: auto;    margin: 0;    padding: 0;    border-width: 0;    position: relative;}.om-tabs .om-tabs-panels .om-panel-body{    padding:1em;}.om-tabs-noborder {    border-width: 0;}