var nExpTime = 30*24*60*60*1000;
var strSize = getCookie("FontSize");
var cssDir = "http://www.silvervillage.co.jp/demo/css";
var BName = getBrowserName();
var BVer = getBrowserVersion();
function loadedSize(){
	if(strSize != ""){
		changeCSS(strSize);
	} else {
		changeCSS("fNormal");
	}
}
function change(strValue){
	changeCSS(strValue);
	setCookie("FontSize", strValue);
}
function changeCSS(href) {
	var elem = document.getElementById("css");
	elem.href = cssDir + "/" + href + ".css";
	//before ie5
	if(BName == "Explorer" && BVer < 6){
		if(href == "fNormal"){
			document.body.style.fontSize = "90%";
		}else{
			document.body.style.fontSize = "120%";
		}
	}
	changeIcon(href);
}
function getCookie(strName){
	var nReturn = 0;
	var nLoop = 0;
	var nLength = 0;
	var strNameEx = strName + "=";
	var strTemp = "";
	while (nLoop < document.cookie.length)	{
		nLength = nLoop + strNameEx.length;
		if (document.cookie.substring(nLoop, nLength) == strNameEx)		{
			strTemp = document.cookie.indexOf(";", nLength);
			if (strTemp == -1){
				nReturn = document.cookie.substring(nLength, document.cookie.length);
			}else{
				nReturn = document.cookie.substring(nLength, strTemp);
			}
			break;
		}
		nLoop = document.cookie.indexOf(" ", nLoop) + 1;
		if (nLoop == 0){
			break;
		}
	}
	return nReturn;
}
function setCookie(strName, strValue){
	var dtExpire = new Date();
	dtExpire.setTime(dtExpire.getTime() + nExpTime);
	document.cookie = strName + "=" + strValue + "; path=/; expires=" + dtExpire.toGMTString();
}
function getBrowserName()
{
    var aName  = navigator.appName.toUpperCase();
    var uName  = navigator.userAgent.toUpperCase();
    if (aName.indexOf("NETSCAPE") >= 0)       return "Netscape";
    if (aName.indexOf("MICROSOFT") >= 0)      return "Explorer";
    return "";
}
function getBrowserVersion()
{
	var browser = getBrowserName();
	var version = 0;
	var s = 0;
	var e = 0;
	var appVer  = navigator.appVersion;
	if (browser == "Netscape")
	{
		s = appVer.indexOf(" ",0);
		version = eval(appVer.substring(0,s));
		if (version >= 5) version++;
	}
	if (browser == "Explorer")
	{
		appVer  = navigator.userAgent;
		s = appVer.indexOf("MSIE ",0) + 5;
		e = appVer.indexOf(";",s);
		version = eval(appVer.substring(s,e));
	}
	return version;
}
function flash()
{
    document.write('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="536" height="226">\n');
    document.write('<param name="movie" value="splash.swf" />\n');
    document.write('<param name="quality" value="high" />\n');
    document.write('<embed src="splash.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="536" height="226"></embed>\n');
    document.write('</object>\n');
}

function initRollOverImages() {
  var image_cache = new Object();
  $("img.swap").each(function(i) {
    var imgsrc = this.src;
    var dot = this.src.lastIndexOf('.');
    var imgsrc_on = this.src.substr(0, dot) + '_on' + this.src.substr(dot, 4);
    image_cache[this.src] = new Image();
    image_cache[this.src].src = imgsrc_on;
    $(this).hover(
      function() { this.src = imgsrc_on; },
      function() { this.src = imgsrc; });
  });
  var image_cache2 = new Object();
  $("input.swap").each(function(i) {
    var imgsrc = this.src;
    var dot = this.src.lastIndexOf('.');
    var imgsrc_on = this.src.substr(0, dot) + '_on' + this.src.substr(dot, 4);
    image_cache2[this.src] = new Image();
    image_cache2[this.src].src = imgsrc_on;
    $(this).hover(
      function() { this.src = imgsrc_on; },
      function() { this.src = imgsrc; });
  });
}

$(document).ready(initRollOverImages);


function changeIcon(size) {
	if(size == "fNormal"){
//ここにイメージ切り替えscriptを記載
	} else {
//ここにイメージ切り替えscriptを記載
	}
}