var lpMTagConfig = {'lpServer' : "server.iad.liveperson.net",'lpNumber' : "28920771",'lpProtocol' : "https"}; 

function lpAddMonitorTag(src)
{
    if(typeof(src)=='undefined'||typeof(src)=='object')
    {
        src=lpMTagConfig.lpMTagSrc?lpMTagConfig.lpMTagSrc:'/hcp/html/mTag.js';
    }
    if(src.indexOf('http')!=0)
    {
        src=lpMTagConfig.lpProtocol+"://"+lpMTagConfig.lpServer+src+'?site='+lpMTagConfig.lpNumber;
    }
    else
    {
        if(src.indexOf('site=')<0)
        {
            if(src.indexOf('?')<0)src=src+'?';
            else src=src+'&';
            src=src+'site='+lpMTagConfig.lpNumber;
        }
    };

    var s=document.createElement('script');
    s.setAttribute('type','text/javascript');
    s.setAttribute('charset','iso-8859-1');
    s.setAttribute('src',src);
    document.getElementsByTagName('head').item(0).appendChild(s);
}

if (window.attachEvent) window.attachEvent('onload',lpAddMonitorTag); 
else window.addEventListener("load",lpAddMonitorTag,false);

function liveChat()
{
    lpButtonCTTUrl = 'https://server.iad.liveperson.net/hc/28920771/?cmd=file&file=visitorWantsToChat&site=28920771&imageUrl=https://www.aptouring.com.au/images/apt/nav&referrer='+escape(document.location); 
    lpButtonCTTUrl = (typeof(lpAppendVisitorCookies) != 'undefined' ? lpAppendVisitorCookies(lpButtonCTTUrl) : lpButtonCTTUrl); 
    lpButtonCTTUrl = ((typeof(lpMTag)!='undefined' && typeof(lpMTag.addFirstPartyCookies)!='undefined')?lpMTag.addFirstPartyCookies(lpButtonCTTUrl):lpButtonCTTUrl);
    window.open(lpButtonCTTUrl,'chat28920771','width=475,height=400,resizable=yes');
    return false;
}