function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}

var win=null;
function NewWindow(mypage,myname,w,h,scroll,pos){
if(pos=="random"){LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;}
if(pos=="center"){LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;}
else if((pos!="center" && pos!="random") || pos==null){LeftPosition=0;TopPosition=20}
settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=0';
win=window.open(mypage,myname,settings);}

function sendAjaxRequest(url, eventhandler) {
	if (window.ActiveXObject) {
		var xhr = new ActiveXObject("Microsoft.XMLHTTP");
	} else if (window.XMLHttpRequest) {
		var xhr = new XMLHttpRequest();
	}

	xhr.onreadystatechange = function() {
	if(xhr.readyState == 4)
		if(xhr.status == 200) {
			eventhandler(xhr);
		} else {
			document.body.innerHTML = xhr.responseText;
		}
	}

	xhr.open("POST", url, true );
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	xhr.send("");
}

function getAjaxTwits(url, itemCount) {
	var twitter = document.getElementById('AjaxTwits');
	var twitterload = document.getElementById('AjaxTwitsLoader');
	
	sendAjaxRequest(url, function(ajaxRequest) {
		if (ajaxRequest.responseText) {
					
			var ans = eval('(' + ajaxRequest.responseText + ')');

			if (ans.item) {
				twitter.removeChild(twitterload);
				
				for (var i = 0; i < itemCount; i++) {
					var li = document.createElement("DIV");
					li.className = "twitter-item";
					
						var profilePic = document.createElement("A");
						profilePic.href = "http://www.twitter.com/" + ans.item[i].user;
						
							var img = document.createElement("IMG");
							img.src = ans.item[i].avatar;
						
						profilePic.appendChild(img);
						
					li.appendChild(profilePic);
					
					var message = hyperlinks(ans.item[i].description);
					message = twitter_users(message);
					
					li.innerHTML += message;
					
						var br = document.createElement("BR");
					
					li.appendChild(br);
						
						var a = document.createElement("A");
						a.href = ans.item[i].url;
						a.className = "twitter-link";
						a.innerHTML = "# posted " + ans.item[i].date;
					
					li.appendChild(a);
					
					twitter.appendChild(li);
				}
				
				//cycle!
				jQuery('#AjaxTwits').cycle({
					fx: 'scrollDown', 
					timeout: 6000, 
					delay: -5000
				});
			}
		}
	});

}

function hyperlinks(text) {
	text = text.replace(/\s(http:\/\/[a-z][a-zA-Z0-9\/\*\-\?\.\&\%\$]*)/ig," <a href=\"$1\" class=\"twitter-link\">$1</a>");
	text = text.replace(/\s([a-zA-Z]+:\/\/[a-z][a-z0-9\_\.\-]*[a-z]{2,6}[a-zA-Z0-9\/\*\-\?\&\%]*)([\s|\.|\,])/ig," <a href=\"$1\" class=\"twitter-link\">$1</a>$2");
	// match www.something.domain/path/file.extension?some=variable&another=asf%
	text = text.replace(/\s(www\.[a-z][a-z0-9\_\.\-]*[a-z]{2,6}[a-zA-Z0-9\/\*\-\?\&\%]*)([\s|\.|\,])/ig," <a href=\"http://$1\" class=\"twitter-link\">$1</a>$2");      
    
	return text;
}

function twitter_users(text) {
    text = text.replace(/([\.|\,|\:|\¡|\¿|\>|\{|\(]?)@{1}(\w*)([\.|\,|\:|\!|\?|\>|\}|\)]?)\s/ig, "$1<a href=\"http://twitter.com/$2\" class=\"twitter-user\">@$2</a>$3 ");
    return text;
}