/* Smooth scrolling
   Changes links that link to other parts of this page to scroll
   smoothly to those links rather than jump to them directly, which
   can be a little disorienting.
   
   sil, http://www.kryogenix.org/
   
   v1.0 2003-11-11
   v1.1 2005-06-16 wrap it up in an object
*/

var ss = {
  fixAllLinks: function() {
    // Get a list of all links in the page
    var allLinks = document.getElementsByTagName('a');
    // Walk through the list
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if ((lnk.href && lnk.href.indexOf('#') != -1) && 
          ( (lnk.pathname == location.pathname) ||
	    ('/'+lnk.pathname == location.pathname) ) && 
          (lnk.search == location.search)) {
        // If the link is internal to the page (begins in #)
        // then attach the smoothScroll function as an onclick
        // event handler
        ss.addEvent(lnk,'click',ss.smoothScroll);
      }
    }
  },

  smoothScroll: function(e) {
    // This is an event handler; get the clicked on element,
    // in a cross-browser fashion
    if (window.event) {
      target = window.event.srcElement;
    } else if (e) {
      target = e.target;
    } else return;

    // Make sure that the target is an element, not a text node
    // within an element
    if (target.nodeName.toLowerCase() != 'a') {
      target = target.parentNode;
    }
  
    // Paranoia; check this is an A tag
    if (target.nodeName.toLowerCase() != 'a') return;
  
    // Find the <a name> tag corresponding to this href
    // First strip off the hash (first character)
    anchor = target.hash.substr(1);
    // Now loop all A tags until we find one with that name
    var allLinks = document.getElementsByTagName('a');
    var destinationLink = null;
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if (lnk.name && (lnk.name == anchor)) {
        destinationLink = lnk;
        break;
      }
    }
    if (!destinationLink) destinationLink = document.getElementById(anchor);

    // If we didn't find a destination, give up and let the browser do
    // its thing
    if (!destinationLink) return true;
  
    // Find the destination's position
    var destx = destinationLink.offsetLeft; 
    var desty = destinationLink.offsetTop;
    var thisNode = destinationLink;
    while (thisNode.offsetParent && 
          (thisNode.offsetParent != document.body)) {
      thisNode = thisNode.offsetParent;
      destx += thisNode.offsetLeft;
      desty += thisNode.offsetTop;
    }
  
    // Stop any current scrolling
    clearInterval(ss.INTERVAL);
  
    cypos = ss.getCurrentYPos();
  
    ss_stepsize = parseInt((desty-cypos)/ss.STEPS);
    ss.INTERVAL =
setInterval('ss.scrollWindow('+ss_stepsize+','+desty+',"'+anchor+'")',10);
  
    // And stop the actual click happening
    if (window.event) {
      window.event.cancelBubble = true;
      window.event.returnValue = false;
    }
    if (e && e.preventDefault && e.stopPropagation) {
      e.preventDefault();
      e.stopPropagation();
    }
  },

  scrollWindow: function(scramount,dest,anchor) {
    wascypos = ss.getCurrentYPos();
    isAbove = (wascypos < dest);
    window.scrollTo(0,wascypos + scramount);
    iscypos = ss.getCurrentYPos();
    isAboveNow = (iscypos < dest);
    if ((isAbove != isAboveNow) || (wascypos == iscypos)) {
      // if we've just scrolled past the destination, or
      // we haven't moved from the last scroll (i.e., we're at the
      // bottom of the page) then scroll exactly to the link
      window.scrollTo(0,dest);
      // cancel the repeating timer
      clearInterval(ss.INTERVAL);
      // and jump to the link directly so the URL's right
      location.hash = anchor;
    }
  },

  getCurrentYPos: function() {
    if (document.body && document.body.scrollTop)
      return document.body.scrollTop;
    if (document.documentElement && document.documentElement.scrollTop)
      return document.documentElement.scrollTop;
    if (window.pageYOffset)
      return window.pageYOffset;
    return 0;
  },

  addEvent: function(elm, evType, fn, useCapture) {
    // addEvent and removeEvent
    // cross-browser event handling for IE5+,  NS6 and Mozilla
    // By Scott Andrew
    if (elm.addEventListener){
      elm.addEventListener(evType, fn, useCapture);
      return true;
    } else if (elm.attachEvent){
      var r = elm.attachEvent("on"+evType, fn);
      return r;
    } else {
      alert("Handler could not be removed");
    }
  } 
}

ss.STEPS = 25;

ss.addEvent(window,"load",ss.fixAllLinks);

// for anchor //
var badBrowser = (/MSIE/.test(navigator.userAgent) && navigator.platform == "Win32");
if ( badBrowser)
{
	var imgs = '<img src="images/top.gif" style="width:112px; height:22px" />'
}
else
{	var imgs = '<img src="images/top.gif" style="width:148px; height:22px" />'
}

addComment={moveForm:function(d,f,i,c){var m=this,a,h=m.I(d),b=m.I(i),l=m.I("cancel-comment-reply-link"),j=m.I("comment_parent"),k=m.I("comment_post_ID");if(!h||!b||!l||!j){return}m.respondId=i;c=c||false;if(!m.I("wp-temp-form-div")){a=document.createElement("div");a.id="wp-temp-form-div";a.style.display="none";b.parentNode.insertBefore(a,b)}h.parentNode.insertBefore(b,h.nextSibling);if(k&&c){k.value=c}j.value=f;l.style.display="";l.onclick=function(){var n=addComment,e=n.I("wp-temp-form-div"),o=n.I(n.respondId);if(!e||!o){return}n.I("comment_parent").value="0";e.parentNode.insertBefore(o,e);e.parentNode.removeChild(e);this.style.display="none";this.onclick=null;return false};try{m.I("comment").focus()}catch(g){}return false},I:function(a){return document.getElementById(a)}};
;var scrolltotop={setting:{startline:100,scrollto:0,scrollduration:1000,fadeduration:[500,100]},controlHTML:imgs,controlattrs:{offsetx:"45%",offsety:0},anchorkeyword:'#top',state:{isvisible:false,shouldvisible:false},scrollup:function(){if(!this.cssfixedsupport)
this.$control.css({opacity:0})
var dest=isNaN(this.setting.scrollto)?this.setting.scrollto:parseInt(this.setting.scrollto)
if(typeof dest=="string"&&jQuery('#'+dest).length==1)
dest=jQuery('#'+dest).offset().top
else
dest=0
this.$body.animate({scrollTop:dest},this.setting.scrollduration);},keepfixed:function(){var $window=jQuery(window)
var controlx=$window.scrollLeft()+$window.width()-this.$control.width()-this.controlattrs.offsetx
var controly=$window.scrollTop()+$window.height()-this.$control.height()-this.controlattrs.offsety
this.$control.css({left:controlx+'px',top:controly+'px'})},togglecontrol:function(){var scrolltop=jQuery(window).scrollTop()
if(!this.cssfixedsupport)
this.keepfixed()
this.state.shouldvisible=(scrolltop>=this.setting.startline)?true:false
if(this.state.shouldvisible&&!this.state.isvisible){this.$control.stop().animate({opacity:1},this.setting.fadeduration[0])
this.state.isvisible=true}
else if(this.state.shouldvisible==false&&this.state.isvisible){this.$control.stop().animate({opacity:0},this.setting.fadeduration[1])
this.state.isvisible=false}},init:function(){jQuery(document).ready(function($){var mainobj=scrolltotop
var iebrws=document.all
mainobj.cssfixedsupport=!iebrws||iebrws&&document.compatMode=="CSS1Compat"&&window.XMLHttpRequest
mainobj.$body=(window.opera)?(document.compatMode=="CSS1Compat"?$('html'):$('body')):$('html,body')
mainobj.$control=$('<div id="topcontrol">'+mainobj.controlHTML+'</div>').css({position:mainobj.cssfixedsupport?'fixed':'absolute',bottom:mainobj.controlattrs.offsety,right:mainobj.controlattrs.offsetx,opacity:0,cursor:'pointer'}).attr({title:'Scroll Back to Top'}).click(function(){mainobj.scrollup();return false}).appendTo('body')
if(document.all&&!window.XMLHttpRequest&&mainobj.$control.text()!='')
mainobj.$control.css({width:mainobj.$control.width()})
mainobj.togglecontrol()
$('a[href="'+mainobj.anchorkeyword+'"]').click(function(){mainobj.scrollup()
return false})
$(window).bind('scroll resize',function(e){mainobj.togglecontrol()})})}}
scrolltotop.init()