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";
	}
}
window.onload = function() {
externalLinks();
}

$(document).ready(function() {

	//Select all anchor tag with rel set to tooltip
	$('a[rel=tooltip]').mouseover(function(e) {
		
		//Grab the title attribute's value and assign it to a variable
		var tip = $(this).attr('title');	
		
		//Remove the title attribute's to avoid the native tooltip from the browser
		$(this).attr('title','');
		
		//Append the tooltip template and its value
		$("html").append('<div id="tooltip"><div class="tipBody">' + tip + '</div></div>');		
				
		//Show the tooltip with faceIn effect
		$('#tooltip').fadeIn('500');
		$('#tooltip').fadeTo('10',0.9);
		
	}).mousemove(function(e) {
	
		//Keep changing the X and Y axis for the tooltip, thus, the tooltip move along with the mouse
		$('#tooltip').css('top', e.pageY + 10 );
		$('#tooltip').css('left', e.pageX + 20 );
		
	}).mouseout(function() {
	
		//Put back the title attribute's value
		$(this).attr('title',$('.tipBody').html());
	
		//Remove the appended tooltip template
		$("html").children('div#tooltip').remove();
		
	});

});