var slideSpeed = 10;	// Higher value = faster
var timer = 10;	// Lower value = faster

var objectIdToSlideDown = false;
var activeId = false;
var slideInProgress = false;

var slideLink = 'oldNewsLink';
var slideContainer = 'oldNewsContainer';
var slideContainerContent = 'oldNewsContent';


function showHideContent(e,inputId)
{
  if(slideInProgress)
    return;

  slideInProgress = true;
  if(!inputId)
    inputId = this.id;
    
  inputId = inputId + '';
  var numericId = inputId.replace(/[^0-9]/g,'');
  var answerDiv = document.getElementById(slideContainer + numericId);

  objectIdToSlideDown = false;

  if(!answerDiv.style.display || answerDiv.style.display=='none') {
    if(activeId && (activeId != numericId)){
      objectIdToSlideDown = numericId;
      slideContent(activeId, (slideSpeed * -1));
    } else {
      answerDiv.style.display = 'block';
      answerDiv.style.visibility = 'visible';
      slideContent(numericId,slideSpeed);
    }
  } else {
    slideContent(numericId,(slideSpeed*-1));
    activeId = false;
  }	
}

function slideContent(inputId,direction)
{
  var obj = document.getElementById(slideContainer + inputId);
  var contentObj = document.getElementById(slideContainerContent + inputId);
  height = obj.clientHeight;
  if(height == 0)
    height = obj.offsetHeight;

  height = height + direction;
  rerunFunction = true;
  if(height > contentObj.offsetHeight) {
    height = contentObj.offsetHeight;
    rerunFunction = false;
  }
  if(height <= 1) {
    height = 1;
    rerunFunction = false;
  }

  obj.style.height = height + 'px';
  var topPos = height - contentObj.offsetHeight;
  if(topPos > 0)
    topPos=0;

  contentObj.style.top = topPos + 'px';
  if(rerunFunction) {
    setTimeout('slideContent(' + inputId + ',' + direction + ')',timer);
  } else {
    if(height <= 1) {
      obj.style.display='none'; 
      if(objectIdToSlideDown && objectIdToSlideDown!=inputId) {
        document.getElementById(slideContainer + objectIdToSlideDown).style.display='block';
        document.getElementById(slideContainer + objectIdToSlideDown).style.visibility='visible';
        slideContent(objectIdToSlideDown,slideSpeed);				
      } else {
        slideInProgress = false;
      }
    } else {
      activeId = inputId;
      slideInProgress = false;
    }
  }
}

function initShowHideDivs()
{
  var divs = document.getElementsByTagName('DIV');
  var divCounter = 1;
  for(var no = 0; no < divs.length; no++) {
    if(divs[no].className == slideLink) {
      divs[no].onclick = showHideContent;
      divs[no].id = slideLink + divCounter;
      var answer = divs[no].nextSibling;
      while(answer && (answer.tagName != 'DIV')) {
        answer = answer.nextSibling;
      }
      answer.id = slideContainer+divCounter;	
      contentDiv = answer.getElementsByTagName('DIV')[0];
      contentDiv.style.top = 0 - contentDiv.offsetHeight + 'px'; 	
      contentDiv.className=slideContainerContent;
      contentDiv.id = slideContainerContent + divCounter;
      answer.style.display='none';
      answer.style.height='1px';
      divCounter++;
    }		
  }	
}