// Thank you 13thparallel.org and youngpup.net !
//We wrap all the code in an object so that it doesn't interfere with any other code
var scroller = {
  speed : 10,
  dir : 0,
  time : 5,
  init : function() {
	try {	
		scroller.doc = new make("textContent");
		scroller.docW = scroller.doc.getW();
		scroller.cont = new make("textContainer");	
		scroller.contW = scroller.cont.getW();
		if(scroller.docW <= scroller.contW) return; // dont need scroller
		//what is the effective scroll distance
		scroller.scrollDist = Math.round(scroller.docW-scroller.contW);
	} catch (e) {
    		return;
    	}
  },
  start : function(dir) {
  	scroller.dir = dir;
	scroller.scroll(dir);
  },	 
  stop : function() {
	scroller.dir = 0;
  },	
  scroll : function() {
  	var docX = parseInt(scroller.doc.css.left);
	if(!docX) docX = 0;
  	var mv = 0;
  	if(scroller.dir > 0) {
  		// scroll right (forward)
  		mv = scroller.checkDist(docX - scroller.speed);
  	} else if(scroller.dir < 0) {
  		// scroll left (back)
		mv = scroller.checkDist(docX + scroller.speed);
	}
	if(!scroller.dir == 0) {
	  	scroller.doc.moveTo(mv,0);
	  	setTimeout("scroller.scroll()",scroller.time);
	}
  },
  scrollColumn : function(dir) {
    	scroller.dir = dir;
	scroller.scroll(dir);
  	var docX = parseInt(scroller.doc.css.left);
	if(!docX) docX = 0;
  	var mv = 0;
  	if(scroller.dir > 0) {
  		// scroll right (forward)
  		mv = scroller.checkDist(docX - 310);
  	} else if(scroller.dir < 0) {
  		// scroll left (back)
		mv = scroller.checkDist(docX + 310);
	}
	if(!scroller.dir == 0) {
	  	scroller.doc.timeSlide(mv, 0, 500, -1);
	}
  },
  checkDist : function(x) {
  	// make sure the scroller widget doesn't get moved to a spot outside of the track
  	m = Math.max(-scroller.scrollDist, x);
	m = Math.min(m, 0);
	return m;
  }
};

function init() {
	try {
		scroller.init();
	} catch (e) {
		return;
	}
};

onload = init;