$(document).ready(function() {
	$('a[rel="external"]').attr('target', '_blank');

	if (document.all) {
		$('#mainNav>ul>li').hoverClass('sfHover');
    }

    if ($.browser.msie) {
    	$('#header li:last-child, #footer li:last-child').css('background', 'none');
    }
});

$.fn.hoverClass = function(c) {
	return this.each(function(){
		$(this).hover(
			function() { $(this).addClass(c); },
			function() { $(this).removeClass(c); }
		);
	});
};

function popup(url) {
	var width  = 800;
	var height = 450;
	var left   = (screen.width  - width)/2;
	var top    = (screen.height - height)/2;
	var params = 'width='+width+', height='+height;
	params += ', top='+top+', left='+left;
	params += ', directories=no';
	params += ', location=no';
	params += ', menubar=no';
	params += ', resizable=no';
	params += ', scrollbars=no';
	params += ', status=no';
	params += ', toolbar=no';
	newwin=window.open(url,'windowname5', params);
	if (window.focus) {newwin.focus()}
	return false;
}