/*FontSize
****************************************************
*/

function setStyle(classname){
	switch(classname){
		case"fontL":
			$("#copyright").css("top","1.5em");
			$(".siteHome .container #contents #localnavi .main .section dl dt ").css("width","130px");		
		break;
		case"fontM":
			$("#copyright").css("top","4px");
			$(".siteHome .container #contents #localnavi .main .section dl dt ").css("width","110px");
		break;
	}
}


function fontSizeInit(){
	var currentstyle = readCookie('fontStyle');
	if(!currentstyle){
		currentstyle = "fontM";
	}
	if (currentstyle){
		switchFont(currentstyle);
			switch(currentstyle){
			case"fontL":
			current_img("sizeL");
			break;
			case"fontM":
			current_img("sizeM");
			break;
		}
	};
	$("#sizeL").click(function(){
		switchFont("fontL");
		if($(this).attr("className")!="active"){
			$(this).addClass("active");
			$("#sizeM").removeClass("active");
			$("#sizeM").attr("src",$("#sizeM").attr("src").replace("_on.", "."));
		}
		return false;
	});
	$("#sizeM").click(function(){
		switchFont("fontM");
		if($(this).attr("className")!="active"){
			$(this).addClass("active");
			$("#sizeL").removeClass("active");
			$("#sizeL").attr("src",$("#sizeL").attr("src").replace("_on.", "."));
		}
		return false;
	});
}


function switchFont(className){
	$("body").removeClass("fontM");
	$("body").removeClass("fontL");
	$("body").addClass(className);
	setStyle(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;
}

function current_img(str){
	var id="#"+str;
	var originalSrc = $(id).attr('src');
	if(originalSrc){
		var onSrc = originalSrc.replace(/(\.gif|\.jpg|\.png)/, "_on$1");
		$(id).attr('src',onSrc);
		$(id).addClass("active");
	}
}