// Soundfields Master JavaScript Document

addLoadEvent(externalLinks);

function externalLinks() {
  if (!document.getElementsByTagName) return;
  var anchors = document.getElementsByTagName("a");
  for (var i=0; i<anchors.length; i++) {
    var anchor = anchors[i];
    if (anchor.getAttribute("href") &&
      anchor.getAttribute("rel") == "external")
      anchor.target = "_blank";
    }
}

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

//News Ticker
// Ticker startup
function startTicker()
{
 // Define run time values
 theCurrentStory	 = -1;
 theCurrentLength	= 0;
 // Locate base objects
 if (document.getElementById) { 
	  theAnchorObject	 = document.getElementById("tickerAnchor");
   runTheTicker();	
   }
 else {
			document.write("<style>.newsTicker{display:none;}");
			return true;
 }
}

// Ticker main run loop
function runTheTicker()
{
 var myTimeout;  
 // Go for the next story data block
 if(theCurrentLength == 0)
 {
  theCurrentStory++;
  theCurrentStory	  = theCurrentStory % theItemCount;
  theStorySummary	  = theSummaries[theCurrentStory].replace(/"/g,'"');  
  theTargetLink		= theSiteLinks[theCurrentStory];
  theAnchorObject.href = theTargetLink;
  thePrefix 	  = "<span class=\"tickls\">" + theLeadString + "</span>";
 }
 // Stuff the current ticker text into the anchor
 theAnchorObject.innerHTML = thePrefix + 
 theStorySummary.substring(0,theCurrentLength) + whatWidget();
 // Modify the length for the substring and define the timer
 if(theCurrentLength != theStorySummary.length)
 {
  theCurrentLength++;
  myTimeout = theCharacterTimeout;
 }
 else
 {
  theCurrentLength = 0;
  myTimeout = theStoryTimeout;
 }
 // Call up the next cycle of the ticker
 setTimeout("runTheTicker()", myTimeout);
}
// Widget generator
function whatWidget()
{
 if(theCurrentLength == theStorySummary.length)
 {
  return theWidgetNone;
 }

 if((theCurrentLength % 2) == 1)
 {
  return theWidgetOne;
 }
 else
 {
  return theWidgetTwo;
 }
}