function shift_right(){
		p = $("#flickr_thumb_container_inner");
		pos = p.position();
		//alert("shift_right: "+pos.left);
		remainder = gl_width + pos.left;
		//alert(remainder);
		if(remainder > 880){	
			$("#flickr_thumb_container_inner").animate({left:"-=880px"},
														"fast",
														function(){
															set_arrows();
														});
		}
	}
	function shift_left(){
		p = $("#flickr_thumb_container_inner");
		pos = p.position();
		//alert("shift_left: "+pos.left);
		remainder = -1 * pos.left;
		//alert(pos.left);
		if(remainder > 880){
			$("#flickr_thumb_container_inner").animate({left:"+=880px"},
														"fast",
														function(){
															set_arrows();
														});
		}else{	
			$("#flickr_thumb_container_inner").animate({left:0},
														"fast",
														function(){
															set_arrows(); 
														});	
		}
	}	
	function set_arrows(){
		p = $("#flickr_thumb_container_inner");
		pos = p.position();
		width = gl_width;
		remainder = width + pos.left;
		
		if(width<=880){
			$("#left_arrow").attr("src","./img/left_none.png");
			$("#right_arrow").attr("src","./img/right_none.png");
		}else{
			if(pos.left == 0){
				$("#left_arrow").attr("src","./img/left_none.png");
				$("#right_arrow").attr("src","./img/right.png");
			}else{			
				if(remainder>880){
					$("#left_arrow").attr("src","./img/left.png");
					$("#right_arrow").attr("src","./img/right.png");
				}else{
					$("#left_arrow").attr("src","./img/left.png");
					$("#right_arrow").attr("src","./img/right_none.png");
				}		
			}
		}
	}
	function swap_image(x){	$("#main_flicr_image").attr('src',img_arr_src[x].src);		}
	function preload(arrayOfImages) {
		i = 0;
		$(arrayOfImages).each(function(){
			 new_image = new Image();
			 new_image.src = this;
			 img_arr_src[i] = new_image;
			 i++;
		});
	}
	
	function scroll_tweet(){
		c = ( $("#tweet_container_inner").width() - $("#tweet_container").width() ) * -1;
		$("#tweet_container_inner").css({left:'152px'});
		$("#tweet_container_inner").animate({left:c+"px"},50000,'linear',function(){ scroll_tweet(); });
	}