function visi(nr)
{
	if (document.layers)
	{
		vista = (document.layers[nr].visibility == 'hide') ? 'show' : 'hide'
		document.layers[nr].visibility = vista;
	}
	else if (document.all)
	{
		vista = (document.all[nr].style.visibility == 'hidden') ? 'visible'	: 'hidden';
		document.all[nr].style.visibility = vista;
	}
	else if (document.getElementById)
	{
		vista = (document.getElementById(nr).style.visibility == 'hidden') ? 'visible' : 'hidden';
		document.getElementById(nr).style.visibility = vista;

	}
}

function blocking(nr)
{
	if (document.layers)
	{
		current = (document.layers[nr].display == 'block') ? 'none' : 'block';
		document.layers[nr].display = current;
	}
	else if (document.all)
	{
		current = (document.all[nr].style.display == 'block') ? 'none' : 'block';
		document.all[nr].style.display = current;
	}
	else if (document.getElementById)
	{
		vista = (document.getElementById(nr).style.display == 'block') ? 'none' : 'block';
		document.getElementById(nr).style.display = vista;
	}
}

$(document).ready( function(){
	$(".belmijForm").submit(function(){
		var bloksubmit=false;
		var msg='';
		$(this).find('input[type=text]').each(function(i, el) {
			if(i==0 && $(el).val().length < 10){
				bloksubmit=true;				
				msg=" - Het ingevulde telefoonnummer is niet geldig (minder dan 10 cijfers.)\n";
			}			
			if(i==1 && !isValidEmailAddress($(el).val())){
				bloksubmit=true;				
				msg=msg+" - Het ingevulde email adres is niet geldig\n";
			}
		});
		if(bloksubmit){
			alert(msg);
			return false;
		}else{
			return true;
		}		
	});
});
function isValidEmailAddress(emailAddress) {
	var pattern = new RegExp(/^(("[\w-+\s]+")|([\w-+]+(?:\.[\w-+]+)*)|("[\w-+\s]+")([\w-+]+(?:\.[\w-+]+)*))(@((?:[\w-+]+\.)*\w[\w-+]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i);
	return pattern.test(emailAddress);
};