window.onload=function(){
	var size=getCookie("size");
	if (size!=""){
		size=parseInt(size);
		if (size>0 && size<4) setSize(size);
	}
}
function setSize(size) {
	switch (size) {
		case 1:
			document.body.style.fontSize="59%";
			setCookie("size","1",7);
			break;
		case 2:
			document.body.style.fontSize="62.5%";
			setCookie("size","2",7);
			break;
		case 3:
			document.body.style.fontSize="66%";
			setCookie("size","3",7);
			break;
	}
}
function setCookie(c_name,value,expiredays)
{
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString())+"; path=/";
}
function getCookie(c_name)
{
	if (document.cookie.length>0)
  	{
  		c_start=document.cookie.indexOf(c_name + "=");
  		if (c_start!=-1)
    		{
    			c_start=c_start + c_name.length+1;
    			c_end=document.cookie.indexOf(";",c_start);
    			if (c_end==-1) c_end=document.cookie.length;
    			return unescape(document.cookie.substring(c_start,c_end));
    		}
  	}
	return "";
}