$(document).ready(function () {

	if (document.getElementsByTagName) {  
		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";  
		}
	}
	
	$('.hovertoggle').bind("mouseenter", function(e){
		var parts = $(this).attr('src').split('.');
		if (parts.length == 2) {
			var newsrc = parts[0] + '_on.' + parts[1];
			$(this).attr('src', newsrc);
		}
	});
	
	$('.hovertoggle').bind("mouseout", function(e){
		var parts = $(this).attr('src').split('_on');
		if (parts.length == 2) {
			var newsrc = parts[0] + parts[1];
			$(this).attr('src', newsrc);
		}
	});
});