function checkUsername(element){if(window.checkusernametimeout)window.clearTimeout(window.checkusernametimeout);window.checkusernametimeout=window.setTimeout(function(){document.getElementById('check_avail').style.display="none";document.getElementById('check_notavail').style.display="none";document.getElementById('check_notvalid').style.display="none";document.getElementById('check_loading').style.display="block";new Request({url:"/checkusername.aspx",onComplete:function(results){document.getElementById('check_loading').style.display="none";document.getElementById('check_avail').style.display="none";document.getElementById('check_notavail').style.display="none";document.getElementById('check_notvalid').style.display="none";document.getElementById('check_'+results).style.display="block"}}).post({'username':element.value})},300);}