Code back pre

<!--PreLP back to LP when click Back--> <script type="text/javascript"> function getParameterByName(name, url) { if (!url) url = window.location.href; name = name.replace(/[\[\]]/g, "\\$&"); var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"), results = regex.exec(url); if (!results) return null; if (!results[2]) return ''; return decodeURIComponent(results[2].replace(/\+/g, " ")); } var lp_href; lp_href = getParameterByName('lp_href'); if (!lp_href || lp_href == '') { lp_href = $('a.pre-link').attr('href') + location.search; } else { lp_href = lp_href + location.search; } $('a.pre-link').attr('href', lp_href); jQuery(document).ready(function($) { if (window.history && window.history.pushState) { $(window).on('popstate', function() { var hashLocation = location.hash; var hashSplit = hashLocation.split("#!/"); var hashName = hashSplit[1]; if (hashName !== '') { var hash = window.location.hash; if (hash === '') { window.location.href=lp_href; return false; } } }); window.history.pushState('forward', null, location.search + '#forward'); } }); </script>