function Jump(id){
	obj = document.getElementById(id);
	y = obj.offsetTop;
	scrollTo(0,y);
}

function setfontsize(){
	document.body.style.fontSize=getcookie("fontsize")+"%";
}
function change_fontsize(s){
	setcookie("fontsize", s );
	document.body.style.fontSize = s+"%";
}


function change_hidden_blog_group(k){
	ks=k.split(",");
	for(i in ks){
		remove_hidden_blog(document.getElementById("hidden_blog"+ks[i]), ks[i]);
	}
}

function change_hidden_blog(t,id){
	hidden_blog=getcookie("hidden_blog").split(",");
	if(hidden_blog!=""&&hidden_blog!="hidden_blog"){
		for(i in hidden_blog){
			if(hidden_blog[i]==id){
				remove_hidden_blog(t,id);
				return false;
			}
		}
		hidden_blog.unshift(id);
		set_hidden_blog=hidden_blog.slice(0, 100).join(",");
	}
	else{
		set_hidden_blog=[id];
	}
	setcookie("hidden_blog", set_hidden_blog );
	t.firstChild.src="/image/icon/icon_batsu.gif";
	t.firstChild.alt="表示する";
	return true;
}
function remove_hidden_blog(t,id){
	hidden_blog=getcookie("hidden_blog").split(",");
	rm=0;
	ml=[];
	for(i in hidden_blog){
		if(hidden_blog[i]==id){
			rm=1;
		}
		else{
			ml.push(hidden_blog[i]);
		}
	}
	if(rm){
		setcookie("hidden_blog", ml.join(","));
	}
	t.firstChild.src="/image/icon/icon_mylist.gif";
	t.firstChild.alt="非表示にする";
	return true;
}


function change_mylist(t,id){
	mylist=getcookie("mylist").split(",");
	if(mylist!=""&&mylist!="mylist"){
		for(i in mylist){
			if(mylist[i]==id){
				remove_mylist(t,id);
				return false;
			}
		}
		mylist.unshift(id);
		set_mylist=mylist.slice(0, 100).join(",");
	}
	else{
		set_mylist=[id];
	}
	setcookie("mylist", set_mylist );
	t.firstChild.src="/image/icon/icon_batsu.gif";
	t.firstChild.alt="マイリストからはずす";
	return true;
}
function remove_mylist(t,id){
	mylist=getcookie("mylist").split(",");
	rm=0;
	ml=[];
	for(i in mylist){
		if(mylist[i]==id){
			rm=1;
		}
		else{
			ml.push(mylist[i]);
		}
	}
	if(rm){
		setcookie("mylist", ml.join(","));
	}
	t.firstChild.src="/image/icon/icon_mylist.gif";
	t.firstChild.alt="マイリストに追加";
	return true;
}
function setcookie(key, val){
	d = new Date();
	d.setTime( d.getTime() + ( 10*365*86400*1000 ) );
	document.cookie = key + "=" + escape(val) + "; expires="+d.toGMTString()+"; domain=ero.liveantena.com; path=/; ";
}
function getcookie(key){
	var tmp = document.cookie + ";";
	var index1 = tmp.indexOf(key, 0);
	if(index1 != -1){
		tmp = tmp.substring(index1,tmp.length);
		var index2 = tmp.indexOf("=",0) + 1;
		var index3 = tmp.indexOf(";",index2);
		return(unescape(tmp.substring(index2,index3)));
	}
	return("");
}