function set_cookie(cookie_name,cookie_value)
{
	var date=new Date();
	date.setTime(date.getTime()+10*24*3600*1000);
	document.cookie=cookie_name+"="+escape(cookie_value)+"; path=/; expire="+date.toGMTString();
	if(cookie_value=="USD")
	{
		document.cookie="exchange_rate="+escape("1")+"; path=/; expire="+date.toGMTString();
		document.cookie="currencies_symbol="+escape("$")+"; path=/; expire="+date.toGMTString();
	}
	if(cookie_value=="GBP")
	{
		document.cookie="exchange_rate="+escape("0.70")+"; path=/; expire="+date.toGMTString();
		document.cookie="currencies_symbol="+escape("£")+"; path=/; expire="+date.toGMTString();
	}
	if(cookie_value=="EUR")
	{
		document.cookie="exchange_rate="+escape("0.61")+"; path=/; expire="+date.toGMTString();
		document.cookie="currencies_symbol="+escape("€")+"; path=/; expire="+date.toGMTString();
	}		
	window.location.reload();
}

function del_cookie(cookie_name)
{
	var date=new Date();
	date.setTime(date.getTime()-10000);
	document.cookie=cookie_name+"=none; path=/; expire="+date.toGMTString();
}

function get_cookie(cookie_name)
{
	var strCookie=unescape(document.cookie);
	var arrCookie=strCookie.split("; ");
	var cookie_value;
	for(var i=0;i<arrCookie.length;i++)
	{
		var arr=arrCookie[i].split("=");
		if(cookie_name==arr[0])
		{
			cookie_value=arr[1];
			break;
		}
	}
	return cookie_value;
}