// JavaScript Document


//アンカースムーズスクロール
jQuery('a').click(function() {
var jumpTo = jQuery(this).attr('href');
if(jumpTo == '#top') {
$('html,body').animate({ scrollTop: 0 }, 'slow');
return false;
}
else if(jumpTo == '#') {
return false;
}
else if(jumpTo.charAt(0) == '#') {
$('html,body').animate({ scrollTop: jQuery(jumpTo).offset().top }, 'slow');
return false;
}
});


/* ---------------文字サイズ追加------------------------------------------------------------- */

$(function(){
	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
	
});



function popup(href){
	window.open(href, 'popup', 'width=600, height=760, menubar=yes, toolbar=yes, scrollbars=yes');
}

/* ---------------------------------------------------------------------------- */
//文字サイズ変更
$(window).unload(function(){
  var title = getActiveStyleSheet();
  createCookie("style", title, 0);
});


function setActiveStyleSheet(title) {
	jQuery("link[rel*='stylesheet'][title]").each(function(){
		this.disabled = true;
		this.disabled = jQuery(this).attr("title")!=title;
	});
}


function getActiveStyleSheet() {
	var titlename = null;
	jQuery("link[rel*='stylesheet'][title]").each(function(){
		if(!this.disabled)
			titlename = jQuery(this).attr("title");
	});
	return titlename;
}


function getPreferredStyleSheet() {
	var titlename = null;
	jQuery("link[rel^='stylesheet'][title]").each(function(){
			titlename = jQuery(this).attr("title");
	});
	return titlename;
}

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;
}

/* ---------------------------------------------------------------------------- */