//font size change
var key01="fontsize";
var nn4=document.layers;
var fs_flag="none";

var fs_big=100;
var fs_normal=80;
var fs_small=70;
var fontsize01;

function get_font_size_change(key01){
	temp01=document.cookie+";";
	i=temp01.indexOf(key01,0);
	if(i!=-1){
		i+=(key01.length+1);
		j=temp01.indexOf(";",i);
		value01=temp01.substring(i,j);
		fs_flag="on";
		return(unescape(value01));
	}return("");
}

function init_font_size_change(){
	fontsize01=get_font_size_change(key01);
	if(nn4){
		
	}else{
		if(fontsize01=="small"){
			fontsize02=fs_small;
		}else if(fontsize01=="big"){
			fontsize02=fs_big;
		}else{
			fontsize02=fs_normal;
		}
		if(document.body){
			document.body.style.fontSize=fontsize02+"%";
		}
	}
}

function set_font_size_change(fsc01){
	document.cookie=key01+"="+fsc01+";path=/;expires=Thu, 1-Jan-2030 00:00:00;";
	location.reload();
}

function write_font_size_change(){
	var onoff=fontsize01;
	var mac_ie="off";
	var mac_ie_true="off";
	if(navigator.userAgent.indexOf("Safari")!=-1){
		//safari
		mac_ie="on";
	}else if(navigator.appVersion.charAt(0) >= "4"){
		if(navigator.appName.charAt(0)=="M" && navigator.platform.charAt(0)=="M"){
			//mac_ie
			mac_ie="on";
			mac_ie_true="on";
		}
	}
	document.write("<a class=large href=");
	if(mac_ie=="on"){
		document.write("javascript:set_font_size_change('big');");
	}else{
		document.write("#");
	}
	document.write(" onclick=set_font_size_change('big'); onkeypress=set_font_size_change('big');>");

	document.write("<span class=indent>大</span></a>");

	document.write("<a class=middle href=");
	if(mac_ie=="on"){
		document.write("javascript:set_font_size_change('normal');");
	}else{
		document.write("#");
	}
	document.write(" onclick=set_font_size_change('normal'); onkeypress=set_font_size_change('normal');>");

	document.write("<span class=indent>中</span></a>");

	document.write("<a class=small href=");
	if(mac_ie=="on"){
		document.write("javascript:set_font_size_change('small');");
	}else{
		document.write("#");
	}
	document.write(" onclick=set_font_size_change('small'); onkeypress=set_font_size_change('small');>");

	document.write("<span class=indent>小</span></a>");
	if(mac_ie_true=="on"){
		document.write("");
	}else{
		document.write("");
	}

}

try { 
document.execCommand('BackgroundImageCache', false, true); 
} catch(e) {}