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请检查下面的 JS 代码，并建议我在 javascript 中进一步添加或修改 -
JS:
var $tabs = $('.tabs > div'), _currhash, $currTab;
$tabs.first().addClass("active");
function showTab() {
if($currTab.length>0) {
$tabs.removeClass('active');
$currTab.addClass('active');
}
/* find the panels and 'unlink' the id to prevent page jump */
$tabs.each(function() {
var _id = $(this).attr('id');
$(this).attr('id',_id+'_tab');
/* eg we have given the tab an id of 'tab1_tab' */
}); /* set up an anchor 'watch' for the panels */
function anchorWatch() {
if(document.location.hash.length>0) {
/* only run if 'hash' has changed */
if(_currhash!==document.location.hash) {
_currhash = document.location.hash; /* we only want to match the unlinked id's */
$currTab = $(_currhash+'_tab');
showTab();
}
}
}
setInterval(anchorWatch,300);
jsfiddle 不工作所以请检查 html 和 css 链接 - readmore