//////////////////// scroll smoothly ////////////////////

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);




//////////////////// rollover ////////////////////

function rollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");

		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("_off."))
			{
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
			}
		}
	}
	
}

if(window.addEventListener) {
window.addEventListener("load", rollover, false);
}
else if(window.attachEvent) {
window.attachEvent("onload", rollover);
}


//////////////////// use [rel="blank"] instead of [target="_blank"]  ////////////////////


function blank() {
	if(!document.getElementsByTagName)
	{
		return;
	}
	var ancs = document.getElementsByTagName("a");

	for(var y = 0, cnt = ancs.length; y < cnt; y++)
	{
		if( ancs[y].getAttribute("href") && "blank" == ancs[y].getAttribute("rel")  )
		{
			ancs[y].target = "_blank";
		}
	}
}

if(window.addEventListener) {
window.addEventListener("load", blank, false);
}
else if(window.attachEvent) {
window.attachEvent("onload", blank);
}



//////////////////// print page  ////////////////////

function printPage() {
	
window.print();
return false;

}

function pushButton() {
	
if(document.getElementById("print")) {
	
var printButton = document.getElementById("print");

	if(printButton.addEventListener) {
		printButton.addEventListener("click", printPage, false);
	} 
	else if(printButton.attachEvent) {
		printButton.attachEvent("onclick", printPage);
	}
}

}

if(window.addEventListener) {
window.addEventListener("load", pushButton, false);
}
else if(window.attachEvent) {
window.attachEvent("onload", pushButton);
}


//////////////////// switch font size [jQuery required]  ////////////////////

$(function(){		   
   var currentstyle = readCookie('fontStyle');
   if (currentstyle){
   switchFont(currentstyle);
   };
   $("a#sizeL").click(function(){
   switchFont("fontL");
   return false;
   });
   $("a#sizeM").click(function(){
   switchFont("fontM");
   return false;
   });
   $("a#sizeS").click(function(){
   switchFont("fontS");
   return false;
  });
});

function switchFont(className){
   $("body").removeAttr("class").addClass(className);
   createCookie('fontStyle', className, 365);
};

// cookie script http://www.quirksmode.org/js/cookies.html
function createCookie(name,value,days){
   if (days){
   var date = new Date();
   date.setTime(date.getTime()+(days*24*60*60*1000));
   var expires = "; expires="+date.toGMTString();
   }
   else var expires = "";
   document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name){
   var nameEQ = name + "=";
   var ca = document.cookie.split(';');
   for(var i=0;i < ca.length;i++)
   {
   var c = ca[i];
   while (c.charAt(0)==' ') c = c.substring(1,c.length);
   if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
   }
   return null;
}





//////////////////// drop down menu  ////////////////////


function ddMenu01Show(){ var dd01 = document.getElementById("ddMenu01"); dd01.style.display = "block"; }

function ddMenu01Hide(){ var dd01 = document.getElementById("ddMenu01"); dd01.style.display = "none"; }

function ddMenu02Show(){ var dd02 = document.getElementById("ddMenu02"); dd02.style.display = "block"; }

function ddMenu02Hide(){ var dd02 = document.getElementById("ddMenu02"); dd02.style.display = "none"; }

function ddMenu03Show(){ var dd03 = document.getElementById("ddMenu03"); dd03.style.display = "block"; }

function ddMenu03Hide(){ var dd03 = document.getElementById("ddMenu03"); dd03.style.display = "none"; }

function ddMenu04Show(){ var dd04 = document.getElementById("ddMenu04"); dd04.style.display = "block"; }

function ddMenu04Hide(){ var dd04 = document.getElementById("ddMenu04"); dd04.style.display = "none"; }

function ddMenu05Show(){ var dd05 = document.getElementById("ddMenu05"); dd05.style.display = "block"; }

function ddMenu05Hide(){ var dd05 = document.getElementById("ddMenu05"); dd05.style.display = "none"; }