/***********************************************
* 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 = 4000; //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(0,0,0); // end color (red, green, blue)

var fcontent=new Array();
begintag='<div style="font: normal 12px Arial;padding-right: 5px;padding-top: 0px;">'; //set opening tag, such as font declarations
fcontent[0]="<p class=\"text2\"><b>History</b><br>World History, African Studies, Asian History, Australian History, Central & Southamerican History, European History, Middle Eastern History, North American History  </p>";
fcontent[1]="<p class=\"text2\"><b>Social Sciences</b><br>Psychology, Economics, Sociology, Alternative, Anthropology, Communication Studies, Controversial Issues, Current Issues, Education, Library & Information Science, Political Science, Society and community </p>";
fcontent[2]="<p class=\"text2\"><b>Arts</b><br>Artists, Design Arts, Architecture, Landscapes, Drama, Film & TV Studies, Music History & Studies, Performing Arts, Works of Art </p>";
fcontent[3]="<p class=\"text2\"><b>Business</b><br>Investment and Banking, Accounting, Case Studies, Strategic Management, Management Sciences, Supply Chain & Logistics, Marketing, Markets & Exchanges </p>";
fcontent[4]="<p class=\"text2\"><b>Literature</b><br>Biographies, Creative Writing, European Literature, North American, World Literature </p>";
fcontent[5]="<p class=\"text2\"><b>Humanities</b><br>Classical Studies, Health & Medicine, Language Studies, Linguistics, Philosophy, Religion & Faith </p>";
fcontent[6]="<p class=\"text2\"><b>Law & Government </b><br>Civil Rights, Government, Human Rights, Civil and Canon Law, Military & International Conflicts & Security </p>";
fcontent[7]="<p class=\"text2\"><b>Sciences </b><br>Engineering, Genetics & Genome Projects, Agriculture, Technology, Archaeology, Astronomy, Atmospheric Sciences, Biochemistry, Biology, Biotechnology, Chemistry, Computer Science, Earth Sciences, Environmental Science, Forestry, Mathematics, Mental Health, Physics, Zoology</p>";
closetag='</div>';

var fwidth='330px'; //set scroller width
var fheight='97px'; //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]+")";
    setTimeout("changecontent()", delay);
	
  }   
}

/*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