jQuery( document ).ready(
			
	function()
	{
		initBlockNewsHome();
	}
);

/** HOMEPAGE NEWSBLOCK ANIMATION **/
var currentHighlightedNewsItem;
var totalShowedNewsItems = 6;
var newsAnimationIntervalSeconds = 3;
var newsAnimationInterval;

function initBlockNewsHome()
{
	if ( document.getElementById("news_message_0") )
	{
		$(".headliners #news_message_0").fadeTo(0, 0.50);
		$(".headliners #news_message_1").fadeTo(0, 0.50);
		$(".headliners #news_message_2").fadeTo(0, 0.50);
		$(".headliners #news_message_3").fadeTo(0, 0.50);
		$(".headliners #news_message_4").fadeTo(0, 0.50);
		$(".headliners #news_message_5").fadeTo(0, 0.50);
		assignNewsMessageBlockEvents();
		selectNewsMessageBlock(0);
		startNewsAnimation();
	}
}

function assignNewsMessageBlockEvents() {
    $(".headliners #news_message_0").hover(
      function () {
	 selectNewsMessageBlock(0);
	 stopNewsAnimation();
      },
      function () {
        startNewsAnimation();
      }
    );

    $(".headliners #news_message_1").hover(
      function () {
	 selectNewsMessageBlock(1);
	 stopNewsAnimation();
      },
      function () {
        startNewsAnimation();
      }
    );

    $(".headliners #news_message_2").hover(
      function () {
	 selectNewsMessageBlock(2);
	 stopNewsAnimation();
      },
      function () {
        startNewsAnimation();
      }
    );

    $(".headliners #news_message_3").hover(
      function () {
	 selectNewsMessageBlock(3);
	 stopNewsAnimation();
      },
      function () {
        startNewsAnimation();
      }
    );

    $(".headliners #news_message_4").hover(
      function () {
	 selectNewsMessageBlock(4);
	 stopNewsAnimation();
      },
      function () {
        startNewsAnimation();
      }
    );

    $(".headliners #news_message_5").hover(
      function () {
	 selectNewsMessageBlock(5);
	 stopNewsAnimation();
      },
      function () {
        startNewsAnimation();
      }
    );
}

function selectNewsMessageBlock(block_id) {
	if(currentHighlightedNewsItem != undefined && currentHighlightedNewsItem != block_id) {
		$(".headliners #news_message_" + currentHighlightedNewsItem).removeClass("active");
		$(".headliners #news_message_" + currentHighlightedNewsItem).fadeTo("fast", 0.50);

		$(".headliners #news_message_" + block_id).addClass("active");
		$(".headliners #news_message_" + block_id).fadeTo("fast", 1);
	} else {
		$(".headliners #news_message_" + block_id).addClass("active");
		$(".headliners #news_message_" + block_id).fadeTo(0, 1);
	}

	currentHighlightedNewsItem = block_id;

	//introduction updaten
    var header_text = $("#artikel_" + block_id).attr("innerHTML");
    $("#introduction").attr("innerHTML", header_text);
}

function startNewsAnimation() {
	clearInterval(newsAnimationInterval);
	newsAnimationInterval = setInterval(doNewsAnimation, newsAnimationIntervalSeconds * 1000);
}

function stopNewsAnimation() {
	clearInterval(newsAnimationInterval);
}

function doNewsAnimation() {
	if(currentHighlightedNewsItem + 1 >= totalShowedNewsItems) {
		selectNewsMessageBlock(0);
	} else {
		selectNewsMessageBlock(currentHighlightedNewsItem + 1);
	}
}