// style Switcher

function setActiveStyleSheet(title) {
	  var i, a, main;
	  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
	    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
	      a.disabled = true;
	      if(a.getAttribute("title") == title) a.disabled = false;
	    }
	  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

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 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;
}

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
	if( title == "print" ){ void(0); }
	else{ createCookie("style", title, 365); }
}
/*
var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);

*/




 // pagetop scroller
function getScrollLeft() { 
 if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
  return document.body.scrollLeft;
 } else if (window.pageXOffset) {
  return window.pageXOffset;
 } else {
  return 0;
 }
}

function getScrollTop() { 
 if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
  return document.body.scrollTop;
 } else if (window.pageYOffset) {
  return window.pageYOffset;
 } else {
  return 0;
 }
}

var pageScrollTimer;
function pageScroll(toX,toY,frms,cuX,cuY) { // 020314
 if (pageScrollTimer) clearTimeout(pageScrollTimer);
 if (!toX || toX < 0) toX = 0;
 if (!toY || toY < 0) toY = 0;
 if (!cuX) cuX = 0 + getScrollLeft();
 if (!cuY) cuY = 0 + getScrollTop();
 if (!frms) frms = 6;

 if (toY > cuY && toY > (getAnchorPosObj('end','enddiv').y) - getInnerSize().height) toY = (getAnchorPosObj('end','enddiv').y - getInnerSize().height) + 1;
 cuX += (toX - getScrollLeft()) / frms; if (cuX < 0) cuX = 0;
 cuY += (toY - getScrollTop()) / frms;  if (cuY < 0) cuY = 0;
 var posX = Math.floor(cuX);
 var posY = Math.floor(cuY);
 window.scrollTo(posX, posY);

 if (posX != toX || posY != toY) {
  pageScrollTimer = setTimeout("pageScroll("+toX+","+toY+","+frms+","+cuX+","+cuY+")",16);
 }
}

function jumpToPT() {
// if (!MacIE3 && !MacIE4 && !NN && window.scrollTo || NN && (Vminor >= 4.75) && window.scrollTo) {
  pageScroll(0,0,5);
// } else {
//  location.hash = "top";
// }
}

var ver;
if(document.all) ver=1;
else if(document.layers) ver=2;
else ver=3;

var tID;
function pageScrl(toX,toY,frms,cuX,cuY){
	if(tID) clearTimeout(tID);
	if((cuX>=toX)&&(cuY>=toY)) return;
	if(!toX || toX<0) toX=0;
	if(!toY || toY<0) toY=0;
	if(!cuX) cuX=0+getScrollLeft();
	if(!cuY) cuY=0+getScrollTop();

	cuX+=(toX-getScrollLeft())/frms;
	if(cuX<0) cuX=0;
	cuY+=(toY-getScrollTop())/frms;
	if(cuY<0) cuY=0;
	var posX=Math.floor(cuX);
	var posY=Math.floor(cuY);
	window.scrollTo(posX,posY);
	if(posX!=toX || posY!=toY) tID=setTimeout("pageScrl("+toX+","+toY+","+frms+","+cuX+","+cuY+")",16);
}

function writeOffset(whichOne){
	if(ver==2) document.write('<layer id="scrollerOffset'+whichOne+'Layer" height="1" width="504"></layer>');
	else document.write('<span id="scrollerOffset'+whichOne+'Div" style="position:relative; height:1px; width:100%; color:#ffffff; background-color:#ffffff"></span><br>');

	if(ver==1) eval('scrollOffset'+whichOne+'= document.all.scrollerOffset'+whichOne+'Div.offsetTop');
	else if(ver==2) eval('scrollOffset'+whichOne+'= document.layers.scrollerOffset'+whichOne+'Layer.top');
	else if(ver==3) eval('scrollOffset'+whichOne+'= document.getElementById("scrollerOffset'+whichOne+'Div").offsetTop');
}