//?????URL
var local = "http://www.wakunaga.co.jp/";

function setActiveStyleSheet(title) {
  if(title){

  }else{
      title = "mtxt";
  }

  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;
}

function setActiveImage(title,flg){
	//????????????
	
	var local = "http://www.wakunaga.co.jp/";	
	if(title=="btxt"){
		document.write('<img src="../../share/head_b01_big.gif" alt="" width="175" height="36" border="0" usemap="#Map" class="img02" name="fontchimg1" id="textChange" />');
	} else if(title=="mtxt"){
		document.write('<img src="../../share/head_b01.gif" alt="" width="175" height="36" border="0" usemap="#Map" class="img02" name="fontchimg1" id="textChange"/>');
	} else if(title=="stxt"){
		document.write('<img src="../../share/head_b01_small.gif" alt="" width="175" height="36" border="0" usemap="#Map" class="img02" name="fontchimg1" id="textChange"/>');
	} else {
		document.write('<img src="../../share/head_b01.gif" alt="" width="175" height="36" border="0" usemap="#Map" class="img02" name="fontchimg1" id="textChange"/>');
	}
}

function chimg(flg){
	
	if(flg==1){
		document.images['fontchimg1'].src = img[0].src;
		
	}else if(flg==2){
		document.images['fontchimg1'].src = img[1].src;
	} else if(flg==3){
		document.images['fontchimg1'].src = img[2].src;
	}

}

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

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

//	?????
var img = new Array();
img[0] = new Image();img[0].src = "../../share/head_b01_big.gif";	//?		
img[1] = new Image();img[1].src = "../../share/head_b01.gif";		//?
img[2] = new Image();img[2].src = "../../share/head_b01_small.gif";//?

var cookie = readCookie("style");

var title = cookie ? cookie : getPreferredStyleSheet();

//setActiveStyleSheet(title);