window.onload = function() {

  HtinyScrolling.init(); scrollTips.init();

 }

 

var HtinyScrolling = {

 speed : 40,      //set here the scroll speed: when this value increase, the speed decrease. 

 maxStep: 150,  //set here the "uniform motion" step for long distances

 brakeK: 3,   //set here the coefficient of slowing down

 hash:null,  

 currentBlock:null,

 requestedX:0,

 init: function() {

  var lnks = document.getElementsByTagName('a');   

  var ilnks = document.getElementsByTagName('img');   

  for(var i = 0, lnk; lnk = lnks[i]; i++) {   

   if ((lnk.href && lnk.href.indexOf('#') != -1) &&  ( (lnk.pathname == location.pathname) ||

   ('/'+lnk.pathname == location.pathname) ) && (lnk.search == location.search)) {  

   lnk.onclick = this.initScroll;     

   }   

  }    

 },

 getElementXpos: function(el){

  var x = 0;

  while(el.offsetParent){  

   x += el.offsetLeft;    

   el = el.offsetParent;

  } return x;

 },  

 getScrollLeft: function(){

  if(document.all) return (document.documentElement.scrollLeft) ? document.documentElement.scrollLeft : document.body.scrollLeft;

  else return window.pageXOffset;   

 }, 

 getWindowWidth: function(){

  if (window.innerWidth) return window.innerWidth; 

  if(document.documentElement && document.documentElement.clientWidth) return document.documentElement.clientWidth;

 },

 getDocumentWidth: function(){

  if (document.width) return document.width;

  if(document.body.offsetWidth) return document.body.offsetWidth;

 },

 initScroll: function(e){

  var targ;  

  if (!e) var e = window.event;

  if (e.target) targ = e.target;

  else if (e.srcElement) targ = e.srcElement;   

  HtinyScrolling.hash = targ.href.substr(targ.href.indexOf('#')+1,targ.href.length); 

  HtinyScrolling.currentBlock = document.getElementById(HtinyScrolling.hash);   

  if(!HtinyScrolling.currentBlock) return;

  HtinyScrolling.requestedX = HtinyScrolling.getElementXpos(HtinyScrolling.currentBlock); 

  HtinyScrolling.scroll(targ); 

  return false;

 },

 scroll: function(targ){

  var left  = HtinyScrolling.getScrollLeft();

  if(HtinyScrolling.requestedX > left) { 

   var endDistance = Math.round((HtinyScrolling.getDocumentWidth() - (left + HtinyScrolling.getWindowWidth())) / HtinyScrolling.brakeK);

   endDistance = Math.min(Math.round((HtinyScrolling.requestedX-left)/ HtinyScrolling.brakeK), endDistance);

   var offset = Math.max(2, Math.min(endDistance, HtinyScrolling.maxStep));

  } else { var offset = - Math.min(Math.abs(Math.round((HtinyScrolling.requestedX-left)/ HtinyScrolling.brakeK)), HtinyScrolling.maxStep);

  } window.scrollTo(left + offset, 0);  

  if(Math.abs(left-HtinyScrolling.requestedX) <= 1 || HtinyScrolling.getScrollLeft() == left) {

   window.scrollTo(HtinyScrolling.requestedX, 0);

   if(!document.all || window.opera) location.hash = HtinyScrolling.hash;


   HtinyScrolling.hash = null;

  } else  setTimeout(HtinyScrolling.scroll,HtinyScrolling.speed);   

 }

}


var scrollTips = {

 dx : null,

 init : function() { 

  if (window.addEventListener) {

  window.addEventListener("DOMMouseScroll", this.mouseScroll, false);

  } else document.attachEvent("onmousewheel", this.mouseScroll); 


  var left = document.getElementById('left');

 },

 

 mouseScroll : function(e) {

  if (!e) var e = window.event;

  if (e.wheelDelta <= 0 || e.detail>=0){  

  window.scrollBy(80,0);

  } else  window.scrollBy(-80,0) ; 

 } ,

 

 arrowScroll: function(val) {

  if(val==1) {

   window.scrollBy(70,0);

  } else {

   window.scrollBy(-70,0)

  }

 }

}