var navDuration = 150; //time in miliseconds
var navJumpHeight = "0.45em";

$(document).ready(function () {
	if(jQuery.support.opacity) {
		$('#nav li.non_active').hover(function() {
			$(this).animate({ top : "-="+navJumpHeight }, navDuration);       
		}, function() {
			$(this).animate({ top : "0" }, navDuration);
		});
	}
	
	$('div#contact a.facebook').click(function(){
		window.open(this.href);
		return false;
	});
});