//Pedro Reis
var bgImg=new Array();

/***********************************************
* Fading Scroller- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

var delay = 10000; //set delay between message change (in miliseconds)
var maxsteps=30; // number of steps to take to change from start color to endcolor
var stepdelay=40; // time in miliseconds of a single step
//**Note: maxsteps*stepdelay will be total time in miliseconds of fading effect
var startcolor= new Array(255,255,255); // start color (red, green, blue)
var endcolor=new Array(90,85,85); // end color (red, green, blue)

var fcontent=new Array();
var bgImg	=new Array();

//begintag='<span class=\'test\' valign=\'top\' style=\'padding: 5px;\'>'; //set opening tag, such as font declarations
//fcontent[0]="<b>What\'s new?</b><br>New scripts added to the Scroller category!<br><br>The MoreZone has been updated. <a href='../morezone/index.htm'>Click here to visit</a>";
//fcontent[1]="Dynamic Drive has been featured on Jars as a top 5% resource, and About.com as a recommended DHTML destination.";
//fcontent[2]="Ok, enough with these pointless messages. You get the idea behind this script.</a>";
//closetag='</span>';

var fwidth='280px'; //set scroller width
var fheight='69px'; //set scroller height

var fadelinks=1;  //should links inside scroller content also fade like text? 0 for no, 1 for yes.

///No need to edit below this line/////////////////


var ie4=document.all&&!document.getElementById;
var DOM2=document.getElementById;
var faderdelay=0;
var index=0;


/*Rafael Raposo edited function*/
//function to change content
/*
function changecontent(){
  if (index>=fcontent.length)
  {
    index=0
  }
  if (DOM2){
    document.getElementById("fscroller").style.color="rgb("+startcolor[0]+", "+startcolor[1]+", "+startcolor[2]+")"
    document.getElementById("fscroller").innerHTML=begintag+fcontent[index]+closetag
    if (fadelinks)
      linkcolorchange(1);
    colorfade(1, 15);
  }
  else if (ie4)
    document.all.fscroller.innerHTML=begintag+fcontent[index]+closetag;
  index++
}
*/
// colorfade() partially by Marcio Galli for Netscape Communications.  ////////////
// Modified by Dynamicdrive.com

function linkcolorchange(step){
  var obj=document.getElementById("fscroller").getElementsByTagName("A");
  if (obj.length>0){
    for (i=0;i<obj.length;i++)
      obj[i].style.color=getstepcolor(step);
  }
}

/*Rafael Raposo edited function*/
var fadecounter;
function colorfade(step) {
  if(step<=maxsteps) {	
    document.getElementById("fscroller").style.color=getstepcolor(step);
    if (fadelinks)
      linkcolorchange(step);
    step++;
    fadecounter=setTimeout("colorfade("+step+")",stepdelay);
  }else{
    clearTimeout(fadecounter);
    document.getElementById("fscroller").style.color="rgb("+endcolor[0]+", "+endcolor[1]+", "+endcolor[2]+")";
    t = setTimeout("changecontent()", delay);
    //alert('displaying content with index ('+(index-1)+')');	
  }   
}

/*Rafael Raposo's new function*/
function getstepcolor(step) {
  var diff
  var newcolor=new Array(3);
  for(var i=0;i<3;i++) {
    diff = (startcolor[i]-endcolor[i]);
    if(diff > 0) {
      newcolor[i] = startcolor[i]-(Math.round((diff/maxsteps))*step);
    } else {
      newcolor[i] = startcolor[i]+(Math.round((Math.abs(diff)/maxsteps))*step);
    }
  }
  return ("rgb(" + newcolor[0] + ", " + newcolor[1] + ", " + newcolor[2] + ")");
}

if (ie4||DOM2)
  document.write('<div id="fscroller" style="border:0px solid black;width:'+fwidth+';height:'+fheight+'"></div>');

if (window.addEventListener)
window.addEventListener("load", changecontent, false)
else if (window.attachEvent)
window.attachEvent("onload", changecontent)
else if (document.getElementById)
window.onload=changecontent


/* Pedro Reis show specific news item */
function changecontent(index_tmp){
  
  if ( typeof(index_tmp) == 'undefined' || index_tmp.value == 'undefined' || typeof(index_tmp) == 'object')
  {
  	//alert('index_tmp is UNDEFINED!');  
  }
  else
  	index = index_tmp;
   
  if (index>=fcontent.length)
  {
    index=0
  }
  if (DOM2){
    document.getElementById("fscroller").style.color="rgb("+startcolor[0]+", "+startcolor[1]+", "+startcolor[2]+")"
    document.getElementById("fscroller").innerHTML=begintag+fcontent[index]+closetag
    
    // teste a backgroundimage
    document.getElementById("imgnoticia").style.backgroundImage = "url("+bgImg[index]+")";
    document.getElementById("imgnoticia").style.backgroundRepeat= "no-repeat";
    document.getElementById("imgnoticia").style.backgroundPosition= "center center";
    // alert(document.getElementById('bigCell').style.backgroundImage);
    // alert(bgImg[index]);
    
    if (fadelinks)
      linkcolorchange(1);
    colorfade(1, 15);
  }
  else if (ie4) {
    document.all.fscroller.innerHTML=begintag+fcontent[index]+closetag;
  
    // teste a backgroundimage
    document.getElementById("imgnoticia").style.backgroundImage = "url("+bgImg[index]+")";
    document.getElementById("imgnoticia").style.backgroundRepeat= "no-repeat";
    document.getElementById("imgnoticia").style.backgroundPosition= "center center";
    //alert(bgImg[index]);
  }
  index++
  
  //alert(index);
}

function stopTimeout() {
	clearTimeout(t);
}