var AjaxTCRExamples = {};

/* URL of server-side outbound link recording script */
AjaxTCRExamples.linkReportingURL = "http://ajaxref.com/ch2/recordlink.php";

AjaxTCRExamples.encodeValue = function(val)
{
 var encodedVal;
 if (!encodeURIComponent)
 {
   encodedVal = escape(val);
   /* fix the omissions */
   encodedVal = encodedVal.replace(/@/g, '%40');
   encodedVal = encodedVal.replace(/\//g, '%2F');
   encodedVal = encodedVal.replace(/\+/g, '%2B');
 }
 else
 {
   encodedVal = encodeURIComponent(val);
   /* fix the omissions */
   encodedVal = encodedVal.replace(/~/g, '%7E');
   encodedVal = encodedVal.replace(/!/g, '%21');
   encodedVal = encodedVal.replace(/\(/g, '%28');
   encodedVal = encodedVal.replace(/\)/g, '%29');
   encodedVal = encodedVal.replace(/'/g, '%27');
 }
 /* clean up the spaces and return */
 return encodedVal.replace(/\%20/g,'+'); 

}


AjaxTCRExamples.sendRequest = function(url, payload)
{
    var img = new Image();
    img.src = url+"?"+payload;
}

AjaxTCRExamples.logURL = function(URI)
{
    var payload = "site=" + AjaxTCRExamples.encodeValue(URI);
    AjaxTCRExamples.sendRequest(AjaxTCRExamples.linkReportingURL, payload);

}

AjaxTCRExamples.regLinks = function()
{
    var outLinks;
    var curURL = document.domain;
    outLinks = document.body.getElementsByTagName('a');
    for (var i=0;i<outLinks.length;i++) 
    { 
	/* we only want to log the external links, so we check for that first */
	var regxp = /^http|https/i;
        if (regxp.test(outLinks[i].href) && outLinks[i].href.indexOf(curURL) == -1)
        {
	    if (outLinks[i].addEventListener)
                outLinks[i].addEventListener('click',  function() { AjaxTCRExamples.logURL(this.href); }, false);
	    else if (outLinks[i].attachEvent)
		outLinks[i].attachEvent('onmousedown',  function() { AjaxTCRExamples.logURL(window.event.srcElement.href); return false; });
 	}
    }
}

if (window.addEventListener) 
    window.addEventListener('load', AjaxTCRExamples.regLinks, false); 
else if (window.attachEvent) 
    window.attachEvent('onload', AjaxTCRExamples.regLinks);