function urlencode (str) {
    // URL-encodes string
    //
    // version: 911.718
    // discuss at: http://phpjs.org/functions/urlencode    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: AJ
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Brett Zamir (http://brett-zamir.me)    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: travc
    // +      input by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Lars Fischer    // +      input by: Ratheous
    // +      reimplemented by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Joris
    // +      reimplemented by: Brett Zamir (http://brett-zamir.me)
    // %          note 1: This reflects PHP 5.3/6.0+ behavior    // %        note 2: Please be aware that this function expects to encode into UTF-8 encoded strings, as found on
    // %        note 2: pages served as UTF-8
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
    // *     example 2: urlencode('http://kevin.vanzonneveld.net/');    // *     returns 2: 'http%3A%2F%2Fkevin.vanzonneveld.net%2F'
    // *     example 3: urlencode('http://www.google.nl/search?q=php.js&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a');
    // *     returns 3: 'http%3A%2F%2Fwww.google.nl%2Fsearch%3Fq%3Dphp.js%26ie%3Dutf-8%26oe%3Dutf-8%26aq%3Dt%26rls%3Dcom.ubuntu%3Aen-US%3Aunofficial%26client%3Dfirefox-a'
    str = (str+'').toString();
        // Tilde should be allowed unescaped in future versions of PHP (as reflected below), but if you want to reflect current
    // PHP behavior, you would need to add ".replace(/~/g, '%7E');" to the following.
    return encodeURIComponent(str).replace(/!/g, '%21').replace(/'/g, '%27').replace(/\(/g, '%28').
                                    replace(/\)/g, '%29').replace(/\*/g, '%2A').replace(/%20/g, '+');
}

var xmlHttp1;

function pullListingPage(queryStr)
{
	try {
		url = "/real-estate-agents/pull_listing_page.php?query_string=" + urlencode(queryStr);
		//alert(url)
		xmlHttp1.open("GET", url);
		xmlHttp1.onreadystatechange = handlePage;
		xmlHttp1.send(null);
	}
	catch(e) {
		alert("cannot get:" + e.toString());
	}
}

function handlePage()
{
	if (xmlHttp1.readyState == 4) {
		response = xmlHttp1.responseText;
		//alert(response);
		document.getElementById("listingId").innerHTML = response;		
	}
}

function initXmlHttpRequest()
{
	try {
		xmlHttp1 = new XMLHttpRequest();
	}
	catch(e) {
		var XmlHttpVersions = new Array('MSXML2.XMLHTTP.6.0',
						'MSXML2.XMLHTTP.6.0',
						'MSXML2.XMLHTTP.5.0',
						'MSXML2.XMLHTTP.4.0',
						'MSXML2.XMLHTTP.3.0',
						'Microsoft.XMLHTTP');

		for (var i=0 ; i<XmlHttpVersions.length && !xmlHttp1; i++) {
			try {
				xmlHttp1 = new ActiveXObject(XmlHttpVersions[i]);
			}
			catch(e) {}
		}
	}
	if (!xmlHttp1)
		alert("Cannot create!");
}