var size=11;
	function sizeUp() { 
		updatetext(size < 18 ? ++size : size); 
	}
	function sizeDown() { 
		updatetext(size > 9 ? --size: size); 
	}
	function updatetext(newsize) {
		var divs = document.getElementsByTagName("div");
		for (i = 0;i < divs.length;i++) {
			var name = divs[i].className;
			divs[i].style.fontSize = newsize+"px";
			
			
		}
		setCookie('fontsize', newsize, 365);
	}
	function setCookie(c_name,value,expiredays) {
		var exdate=new Date()
		exdate.setDate(expiredays)
		document.cookie=c_name+ "=" +escape(value)+
		((expiredays==null) ? "" : ";expires="+exdate);
	}
	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 null;
	}