function showhide(f) {
	var str	;
	str=document.getElementById("curdiv").value	;
	var strlen;
	strlen=str.length - 3;
	var newstr;
	newstr=str.substring(0,strlen);
	var str_count;
	str_count=document.getElementById("curcount").value	;

    if (f == 1) {

        document.getElementById("right_nl").style.display = "inline";
        document.getElementById("menu_nl").style.display = "inline";
		document.getElementById("left_nl").style.display = "inline";
		document.getElementById("menu_en").style.display = "none";
		document.getElementById("left_en").style.display = "none";
		document.getElementById("right_en").style.display = "none";
		
		showhide2(newstr+"_nl",str_count);
		
    }
    if (f == 2) {

        document.getElementById("right_en").style.display = "inline";
        document.getElementById("menu_en").style.display = "inline";
		document.getElementById("left_en").style.display = "inline";
	    document.getElementById("right_nl").style.display = "none";
	    document.getElementById("menu_nl").style.display = "none";
		document.getElementById("left_nl").style.display = "none";
	
		showhide2(newstr+"_en",str_count);
    }
   
    document.cookie = 'taal=' + f + ';Expires= Mon, 29 Jul 2055 05:00:00 GMT';
}

function showhide2(link,aantal) {
	var i;
	for (i=1;i<=aantal;i++)
	{
        document.getElementById("verberg"+i+"_nl").style.display = "none";
		document.getElementById("verberg"+i+"_en").style.display = "none";
	}
		
		document.getElementById(link).style.display = "inline";
		document.getElementById("curdiv").value=link;
}




function validateform(taal) {
    var text1;
    var text2;
    var text3;

    switch (taal) {
        
        case 1:
            var inform = document.contact1;
            text1 = "U bent vergeten uw achternaam in te vullen. Probeer het nog eens, alstublieft.";
            text2 = "U bent vergeten uw telefoonnummer in te vullen. Probeer het nog eens, alstublieft.";
            text3 = "Dit is geen gelding email adres. Probeer het nog eens, alstublieft.";
            break;
        case 2:
            var inform = document.contact2;
            text1 = "You forgot to enter your last name. Please try again.";
            text2 = "You forgot to enter your telephone number. Please try again.";
            text3 = "This is not a valid e-mail address. Please try again.";
            break;
        
    }

    if (inform.achternaam.value.length < 2) {
        alert(text1);
        return;
    }
    if (inform.telefoon.value.length < 6) {
        alert(text2);
        return;
    }
    if (inform.email.value.length < 5 || inform.email.value.indexOf('@', 0) == -1 || inform.email.value.indexOf('.', 0) == -1) {
        alert(text3);
        return;
    }
    inform.submit();
}

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 "1";
}

function colorlink(doen,link){
	var this_link;
	this_link=document.getElementById(link);
	if (doen == 0)
		this_link.style.color="#353838";
	else
		this_link.style.color="red";
}

function validateform2 () 
		{
			var inform = document.codeLogin;
			if ( inform.email.value.length < 5 ) 
				{
				alert("Dit is geen geldig e-mail adres!");
				return;
				}
			if ( inform.email.value.indexOf ('@',0) ==-1 ) 
				{
				alert("Dit is geen geldig e-mail adres!");
				return;
				}
			if ( inform.email.value.indexOf ('.',0) ==-1 ) 
				{
				alert("Dit is geen geldig e-mail adres!");
				return;
				}
			if ( inform.cl_code.value.length != 19 ) 
				{
				alert("Het licentienummer dat u heeft ingevoerd is niet correct!");
				return;
				}
			document.codeLogin.submit();
		}