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;
}




function FsizeMain(myarr,n){
	//if (!document.getElementById(myarr[0])) return false;
	if (document.getElementById(myarr[0]) != null){
	var my_block = document.getElementById(myarr[0])
	var my_lists = my_block.getElementsByTagName(myarr[1]);

	for (var i=0; i < my_lists.length; i++){
			my_lists[i].style.fontSize= n+"%";
	}
	createCookie("NARA-NPO_fontsize", n, 365);
	}
}


function FsizeChange(n){
	var trag_arr = [["alpha","p"],["update_topics","li"],["alpha","li"],["alpha","tr"],["alpha","h4"],["alpha","h5"],["alpha","h6"]];
	
	for (var i=0; i < trag_arr.length; i++){
		FsizeMain(trag_arr[i],n);
	}
}


function Fsize100(){
	if (!document.getElementsByTagName) return false;
	var lists = document.getElementsByTagName("p");
	for (var i=0; i < lists.length; i++){
		//if (lists[i].className.match(/(.*)(_fs)$/)) {
			lists[i].style.fontSize= "100%";
		//}
	}
}