/* Must be consistent with settings in blog_helper.inc and /css/blog.css */
var BLOG_IMAGE_WIDTH = 400;
var BLOG_IMAGE_MARGIN = 10;

function nextBlogImage (postID) {
	changeBlogImage(postID, 1);

}

function prevBlogImage (postID) {
	changeBlogImage(postID, -1);
}

function changeBlogImage (postID, direction) {
	var numImages = $("#post_" + postID + "_num_images").val();
	var currentImage = $("#post_" + postID + "_current_image").val();

	var nextImage = Number(currentImage) + Number(direction);
	if (Number(nextImage) >= Number(numImages) || Number(nextImage) < 0)
		return;

	$(".post_" + postID + "_image").addClass("non_current");
	$("#post_" + postID + "_image_" + nextImage).removeClass("non_current");
	$("#post_" + postID + "_current_image").val(nextImage);

	var left = $("#carrier_" + postID).css("left");
	left = stripTrailing(left, 2);
	left = Number(left)-(direction *(BLOG_IMAGE_WIDTH + BLOG_IMAGE_MARGIN));
	$("#carrier_" + postID).animate({ left: left+"px" }, "slow");
}

function viewVehicleInfo (infoType) {
	$(".tab").removeClass("tab_current");
	$(".vehicle_info").addClass("hidden");
	$("#" + infoType + "_tab").addClass("tab_current");
	$("#" + infoType).removeClass("hidden");
}