function onshare() { $('#embed').hide(); $('#share input').attr('value',window.location.href); $('#share').show(); }
function offshare() { $('#share').hide(); }
function onembed() { $('#share').hide(); $('#embed textarea').attr('value',trim($('#forembed').html())); $('#embed').show(); }
function offembed() { $('#embed').hide(); } 
function showf () {var aa=document.getElementById('free_div');aa.style['display']='block';var bb=document.getElementById('prem_div');bb.style['display']='none';}
function showp () {var cc=document.getElementById('prem_div');cc.style['display']='block';var dd=document.getElementById('free_div');dd.style['display']='none';}
function selectAll(el) { el.focus(); el.select(); }

function trim(str, chars) {return ltrim(rtrim(str, chars), chars);}
function ltrim(str, chars) {chars = chars || "\\s";	return str.replace(new RegExp("^[" + chars + "]+", "g"), "");}
function rtrim(str, chars) {chars = chars || "\\s";return str.replace(new RegExp("[" + chars + "]+$", "g"), "");}