/***********************************************
* 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 = 5000; //set delay between message change (in miliseconds)
var maxsteps=1; // number of steps to take to change from start color to endcolor 30
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(102,51,153); // start color (red, green, blue)
var endcolor=new Array(102,51,153); // end color (red, green, blue)

var fcontent=new Array();
begintag='<div style="font-size:14px; font-style:italic; font-weight:bold";>'; //set opening tag, such as font declarations
//fcontent[0] = " Students return to UMass Thursday Sep. 1 to Monday Sep. 5. <a href=\"http://www.umass.edu/umhome/events/articles/133005.php\"> Click here</a> for more information.";
fcontent[0] = "";
//fcontent[0] = "Route 2 near Savoy  is open as of Thursday December 15.<br/><a href=\"http://www.flickr.com/photos/massdot/6510832875/\">Click here</a> for image of reconstruction.";
//fcontent[1] = "<a href=\"http://www.flickr.com/photos/massdot/6510832875/\">Click here</a> for image of reconstruction";

//fcontent[0]="UMass commencement will take place on Friday May 13th. <a href=\"http://www.umass.edu/commencement/\">Click here</a> for more information.";
//fcontent[1]="<div style=\"color: #ff0000;\">UMass students return Sunday Sept. 5th. Expect heavy traffic in Amherst. Click <a href=\"http://www.housing.umass.edu/hao/movinginguide.html\">here</a> for more information.</div>";
//fcontent[2]="."
closetag='</div>';

var fwidth='250px'; //set scroller width
var fheight='72px'; //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="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