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());
}
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 "";
}

function setJv()
{
	checkbox_14 = document.getElementById("jv_for_14");
	checkbox_1619 = document.getElementById("jv_for_1619");
	/*if (checkbox_14.checked == true) 
		setCookie("checkbox_14", "aan",365); 
	else
		setCookie("checkbox_14", "uit",365); */
	if (checkbox_16.checked == true) 
		setCookie("checkbox_16", "aan",365); 
	else
		setCookie("checkbox_16", "uit",365); 
	if (checkbox_19.checked == true) 
		setCookie("checkbox_19", "aan",365); 
	else
		setCookie("checkbox_19", "uit",365); 


	tabelrijen = document.getElementsByTagName("tr");
	for (i=0; i<tabelrijen.length; i++)
	{
		switch (tabelrijen[i].className)
		{
			case "jvs_id_1":
				/*if (checkbox_14.checked == true)
					tabelrijen[i].style.display = "";
				else
					tabelrijen[i].style.display = "none";*/
			break;
			case "jvs_id_2":
				if (checkbox_16.checked == true)
					tabelrijen[i].style.display = "";
				else
					tabelrijen[i].style.display = "none";
			break;
			case "jvs_id_3":
				if (checkbox_19.checked == true)
					tabelrijen[i].style.display = "";
				else
					tabelrijen[i].style.display = "none";
			break;
			case "jvs_id_2_3":
				if (checkbox_16.checked == true || checkbox_19.checked == true)
					tabelrijen[i].style.display = "";
				else
					tabelrijen[i].style.display = "none";
			break;
			case "jvs_id_1_2_3":
				if (/*checkbox_14.checked == true ||*/ checkbox_16.checked == true || checkbox_19.checked == true)
					tabelrijen[i].style.display = "";
				else
					tabelrijen[i].style.display = "none";
			break;
			case "jvs_id_1_3":
				if (/*checkbox_14.checked == true ||*/ checkbox_19.checked == true)
					tabelrijen[i].style.display = "";
				else
					tabelrijen[i].style.display = "none";
			break;
			case "jvs_id_":
					tabelrijen[i].style.display = "";
			break;
		}
	}
}