$(document).ready(function()
{
	slide("#sliding-navigation", 25, 15, 150, .8);
	$('#sliding-navigation a').click(function() {
		var rel = $(this).attr('id'); 
		$('.content-right div').hide();		
		$('#sliding-navigation a').removeClass('on');
		$('#' + rel).addClass('on');
		$('#' + rel + '-panel').fadeIn('slow');
		if(rel != 'home') {
			$('#welcome').fadeOut();
		} else {
			$('#welcome').fadeIn('slow');
			
		}
		return false;
	});
});

function slide(navigation_id, pad_out, pad_in, time, multiplier)
{
	// creates the target paths
	var list_elements = navigation_id + " li.sliding-element";
	var link_elements = list_elements + " a";
	
	// initiates the timer used for the sliding animation
	var timer = 0;
	
	// creates the slide animation for all list elements 
	$(list_elements).each(function(i)
	{
		// margin left = - ([width of element] + [total vertical padding of element])
		$(this).css("margin-left","-180px");
		// updates timer
		timer = (timer*multiplier + time);
		$(this).animate({ marginLeft: "0" }, timer);
		$(this).animate({ marginLeft: "15px" }, timer);
		$(this).animate({ marginLeft: "0" }, timer);
	});

	// creates the hover-slide effect for all link elements 		
	$(link_elements).each(function(i)
	{
		$(this).hover(
		function()
		{
			$(this).animate({ paddingLeft: pad_out }, 150);
		},		
		function()
		{
			$(this).animate({ paddingLeft: pad_in }, 150);
		});
	});
}