$(document).ready(function() {
	
	var auto_slide = 1;
	var hover_pause = 1;
	var key_slide = 1;
	
	var auto_slide_seconds = 5000;
	if($('#blogheader ul li').size() == 1) {
		auto_slide = 0;
		key_slide = 0;
		hover_pause = 0;
	}
	if($('#blogheader ul li').size() < 4){
		$('#blogheader ul li').clone().insertAfter('#blogheader ul li:last');
	} 
	
	$('#blogheader ul li:first').before($('#blogheader ul li:last')); 
	
	if(auto_slide == 1){
		var timer = setInterval('slide("right")', auto_slide_seconds); 
	}

	if(hover_pause == 1 && auto_slide == 1){
		$('#blogheader').hover(function(){
			clearInterval(timer)
		},function(){
			timer = setInterval('slide("right")', auto_slide_seconds); 
		});
	}
	
	if(key_slide == 1){
		$(document).bind('keyup', function(e) {
			if(e.keyCode==37){
					slide('slide_left');
			}else if(e.keyCode==39){
					slide('slide_right');
			}
		});
	}
});


function slide(where){
	
	var item_width = $('#blogheader ul li').outerWidth() + 10;

	if(where == 'slide_left'){
		var left_indent = parseInt($('#blogheader ul').css('left')) + item_width;
	}else{
		var left_indent = parseInt($('#blogheader ul').css('left')) - item_width;
	
	}
	
	$('#blogheader ul:not(:animated)').animate({'left' : left_indent},1200, 'easeInOutBack',function(){    
		if(where == 'slide_left'){
			$('#blogheader ul li:first').before($('#blogheader ul li:last'));
		}else{
			$('#blogheader ul li:last').after($('#blogheader ul li:first')); 
		}
		
		$('#blogheader ul').css({'left' : '-648px'});
	});
}