var newsTickers = null;
var isIE5, isIE55, isIE6;
var isNN6, isNN7;
var isOpera;
ua = navigator.userAgent;
if( ua.indexOf( "Opera" ) != -1 ){
  isOpera = true;
} else if( ua.indexOf( "MSIE" ) != -1 ){
  vers = ua.substring( ua.indexOf( "MSIE" ) + 5, ua.indexOf( ";", ua.indexOf( "MSIE" ) ) );
  if( vers == "6.0" ){
    isIE6 = true;
  } else if( vers == "5.5" ){
    isIE55 = true;
  } else if( vers == "5.0" ){
    isIE5 = true;
  }
} else if( ua.indexOf( "Netscape" ) != -1 ){
  vers = ua.substring( ua.lastIndexOf( "/" ) + 1, ua.lastIndexOf( "/" ) + 4 );
  if( ( vers == "7.0" ) || ( vers == "7.1" ) ){
    isNN7 = true;
  } else if( ( vers == "6.0" ) || ( vers == "6.1" ) || ( vers == "6.2" ) ){
    isNN6 = true;
  }
} else if( ua.indexOf( "Mozilla" ) != -1 ){
  vers = ua.substring( ua.indexOf( "rv:" ) + 3, ua.indexOf( "rv:" ) + 5 );
  if( vers == "1." ){
    isNN7 = true;
  } else if( ( vers == "0." ) ){
    isNN6 = true;
  } else if( ua.indexOf( "Safari" ) )
    isNN7 = true;
}
//---------------------------------------------------------------------------------------------------------
// newsName     : unique name
// newsWidth    : width in pixels
// newsHeight   : height in pixels
// newsPause    : amount of time a single item is displayed in milliseconds
// newStep      : pixels to move the text while scrolling
// newsSpeed    : how fast the news is scrolled in milliseconds
// initialPause : additional pause before the first scroll
// imgsrc       : the URL of the bullet to insert into text
//
// newsBackgroundPanel :  to define the color of the background panel of the news, define a
//                        style named .newsBackgroundPanel
// newsItemPanel       :  to define the style of the panel in which the news is displayed in
//                        ( background, text color, font, padding, etc ), define a style named .newsItemPanel
//
// newsImageClass      :  to define the style of the arrow in news is displayed in
//                        ( background, text color, font, padding, etc ), define a style named .newsImageClass
//---------------------------------------------------------------------------------------------------------
function newsTicker( newsName, newsWidth, newsHeight, newsPause, newsStep, newsSpeed, initialPause, imgsrc ){
  this.name = newsName;
  this.width = newsWidth;
  this.height = newsHeight;
  this.pause = newsPause;
  this.step = newsStep;
  this.newsLength = 0;
  this.currentNews = 0;
  this.newsObjs = new Array();
  this.imgsrc = imgsrc;
  this.divOffset = 0;
  this.scrollSpeed = newsSpeed;
  this.needToScroll = false;
  this.mouseOver = false;
  this.timeoutID = null;
  this.initPause = initialPause;
  // methods
  this.addNewsItem = addNewsItem;
  this.closeNewsItems = closeNewsItems;
  // register news ticker
  if( newsTickers == null ){
    newsTickers = new Array();
  }
  newsTickers[ newsTickers.length ] = this;
  this.tickerIndex = newsTickers.length - 1;
  document.writeln( "<DIV style=\"padding: 0; margin:1; background: #F8F8F7; width: " + this.width + "px; height: " + this.height + "px; overflow: hidden;\" id=\"newsBackgroundPanel\">" );
}
function addNewsItem( text, link, target ){
  this.newsLength++;
  if( isIE6 || isIE5 || isIE55 ){
    document.writeln( "<DIV id=\"nt_" + this.name + "_" + ( this.newsLength - 1 ) + "\" class=\"newsItemPanel\" style=\"position: absolute; margin: 0; background: #F8F8F7; width: " + this.width + "px; height: " + this.height + "px; overflow: hidden;\" onMouseOver=\"newsMouseIn(" + this.tickerIndex + ")\" onMouseOut=\"newsMouseOut(" + this.tickerIndex + ")\">" );
  } else if ( isNN6 || isNN7 ){
    document.writeln( "<DIV id=\"nt_" + this.name + "_" + ( this.newsLength - 1 ) + "\" style=\"position: relative; top: 0; margin: 0; padding: 0; background: #F8F8F7; width: " + this.width + "px; height: " + this.height + "px; overflow: hidden;\" onMouseOver=\"newsMouseIn(" + this.tickerIndex + ")\" onMouseOut=\"newsMouseOut(" + this.tickerIndex + ")\">" );
  } else if( isOpera ){
    document.writeln( "<DIV id=\"nt_" + this.name + "_" + ( this.newsLength - 1 ) + "\" class=\"newsItemPanel\" style=\"position: relative; top: 0; margin: 0; background: #F8F8F7; width: " + this.width + "px; height: " + this.height + "px; overflow: hidden;\" onMouseOver=\"newsMouseIn(" + this.tickerIndex + ")\" onMouseOut=\"newsMouseOut(" + this.tickerIndex + ")\">" );
  } else {
    document.writeln( "<DIV id=\"nt_" + this.name + "_" + ( this.newsLength - 1 ) + "\" class=\"newsItemPanel\" style=\"position: absolute; margin: 0; background: #F8F8F7; width: " + this.width + "px; height: " + this.height + "px; overflow: hidden;\" onMouseOver=\"newsMouseIn(" + this.tickerIndex + ")\" onMouseOut=\"newsMouseOut(" + this.tickerIndex + ")\">" );
  }
  if( ( this.imgsrc != "" ) && ( this.imgsrc != null ) ){
    //imgtag = "<IMG src=\"" + this.imgsrc + "\" class=\"newsImageClass\" style=\"margin-left: -10px; padding-right: 8px;\">";
      imgtag = "<IMG src=\"" + this.imgsrc + "\" class=\"newsImageClass\">";
  } else {
    imgtag = "";
  }
  if ( isNN6 || isNN7 ){
    document.writeln( "<DIV class=\"newsItemPanel\" onMouseOver=\"newsMouseIn(" + this.tickerIndex + ")\" onMouseOut=\"newsMouseOut(" + this.tickerIndex + ")\">" + imgtag + "<A STYLE=\"cursor:pointer;text-decoration:underline;\" href=\"" + link + "\" class=\"newsticker\" target=\"" + target + "\">" + text + "</A></DIV>" );
  } else {
    document.writeln( imgtag + "<A STYLE=\"cursor:pointer;text-decoration:underline;\" href=\"" + link + "\" class=\"newsticker\" target=\"" + target + "\">" + text + "</A>" );
  }
  document.writeln( "</DIV>" );
  var div = document.getElementById( "nt_" + this.name + "_" + ( this.newsLength - 1 ) );
  if( this.newsLength > 1 ){
    div.style.top = this.height;
  }
  this.newsObjs[ this.newsObjs.length ] = div;
}
function closeNewsItems(){
  document.writeln( "</DIV>" );
  this.timeoutID = setTimeout( "changeNews(" + this.tickerIndex + ")", this.pause + this.initPause );
}
function changeNews( tIndex ){
  obj = newsTickers[ Number( tIndex ) ];
  clearTimeout( obj.timeoutID );
  obj.timeoutID = null;
  obj.needToScroll = true;
  if( !obj.mouseOver ){
    if( obj.needToScroll ){
      if( obj.divOffset > -obj.height ){
        obj.divOffset -= obj.step;
        if( isNN6 || isNN7 ){
          obj.newsObjs[ obj.currentNews ].style.top = obj.divOffset - ( obj.currentNews * obj.height );
          obj.newsObjs[ ( obj.currentNews + 1 ) % obj.newsLength ].style.top = obj.divOffset - ( ( ( obj.currentNews + 1 ) % obj.newsLength ) * obj.height ) + obj.height;
        } else if( isOpera ){
          obj.newsObjs[ obj.currentNews ].style.top = obj.divOffset - ( obj.currentNews * obj.height );
          obj.newsObjs[ ( obj.currentNews + 1 ) % obj.newsLength ].style.top = obj.divOffset - ( ( ( obj.currentNews + 1 ) % obj.newsLength ) * obj.height ) + obj.height ;
        } else {
          obj.newsObjs[ obj.currentNews ].style.top = obj.divOffset;
          obj.newsObjs[ ( obj.currentNews + 1 ) % obj.newsLength ].style.top = obj.divOffset + obj.height;
        }
        obj.timeoutID = setTimeout( "changeNews(" + obj.tickerIndex + ")", obj.scrollSpeed );
      } else {
        obj.needToScroll = false;
        obj.currentNews = ( obj.currentNews + 1 ) % obj.newsLength;
        obj.divOffset = 0;
        if( isNN6 || isNN7 || isOpera ){
          obj.newsObjs[ obj.currentNews ].style.top = obj.divOffset - ( obj.currentNews * obj.height );
        } else {
          obj.newsObjs[ obj.currentNews ].style.top = 0;
        }
        obj.timeoutID = setTimeout( "changeNews(" + obj.tickerIndex + ")", obj.pause );
      }
    }
  }
}
function newsMouseIn( tIndex ){
  obj = newsTickers[ Number( tIndex ) ];
  obj.mouseOver = true;
}
function newsMouseOut( tIndex ){
  obj = newsTickers[ Number( tIndex ) ];
  obj.mouseOver = false;
  if( obj.needToScroll && !obj.timeoutID ){
    changeNews( tIndex );
  }
}