/* $Id: i_masthead.js,v 1.1.2.1 2009/11/17 20:55:14 bobg Exp $ */
var g_imgArray;
var g_textImgArray;
var g_txtID;
var g_imgID;

function setImageTextImageArrays(imgArray, imgID,txtImgArray, txtImgID)
{
	g_imgArray = imgArray;
	g_textImgArray = txtImgArray;
	g_txtID = txtImgID;
	g_imgID = imgID;
}

function initImage(p_strPath) {
  imageId = g_txtID;
  image = document.getElementById(imageId);
  setOpacity(image, 0);
  image.src = p_strPath;
  image.style.visibility = 'visible';
  fadeIn(imageId,0);
}


function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 10;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
  }
}

function startRotating()
{

	var elem = document.getElementById(g_imgID);
	elem.src = "/public/as/images/mastheads/" + g_imgArray[0];

	//var telem = document.getElementById("rotateTextID");
	//telem.src = "/public/as/images/elements/" + imgTextFileArray[0];
	initImage("/public/as/images/mastheads/" + g_textImgArray[0]);
	/*var telem = document.getElementById("textMessage");
	var hideDiv = document.getElementById("txt0");
	telem.innerHTML=hideDiv.innerHTML;*/
	
	setTimeout("shiftImg(1)",14000);
}

function shiftImg(p_num)
{
	
	var elem = document.getElementById(g_imgID);
	elem.src = "/public/as/images/mastheads/"  + g_imgArray[p_num];
	initImage("/public/as/images/mastheads/" + g_textImgArray[p_num]);
	//var telem = document.getElementById("rotateTextID");
	//.src = "/public/as/images/elements/" + imgTextFileArray[p_num];
	/*var telem = document.getElementById("textMessage");
	var hideDiv = document.getElementById("txt" + p_num);
	telem.innerHTML=hideDiv.innerHTML;*/
	if ((p_num  + 1)>= g_imgArray.length)
		setTimeout("shiftImg(0)", 14000);
	else
	{
		setTimeout("shiftImg(" + (+p_num + 1) + ")",14000);
	}
}