// JavaScript Document

function chkfontsize() {
	var id = "";
	var position = "-118px -71px";
	var size = getCookie("body.style.fontSize");
	if (size == '120%') {
		id = 'fontsizechange-large';
		position = '-174px -68px';
	} else {
		id = 'fontsizechange-medium';
	}
	document.getElementById(id).style.backgroundPosition = position;
}

function getCookie(c_name){
		var st="";
		var ed="";
		if (document.cookie.length>0){
				st=document.cookie.indexOf(c_name + "=");
				if (st!=-1){ 
						st=st+c_name.length+1;
						ed=document.cookie.indexOf(";",st);
						if (ed==-1) ed=document.cookie.length;
						return unescape(document.cookie.substring(st,ed));
				} 
		}
		return false;
}

function bgchange(id) {
	var cid = "";
	switch (id) {
		case 'fontsizechange-medium':
			cid = 'fontsizechange-large';
			document.getElementById(id).style.backgroundPosition = '-118px -71px';
			document.getElementById(cid).style.backgroundPosition = '-174px -4px';
			break;
		case 'fontsizechange-large':
			cid = 'fontsizechange-medium';
			document.getElementById(id).style.backgroundPosition = '-174px -68px';
			document.getElementById(cid).style.backgroundPosition = '-118px -7px';
			break;
	}
}