function ContactForm()
	{
	var error = 0;
	var error_msg = "Het formulier bevat de volgende fouten:\n\n";

	if (document.form1.email.value == "" ) 
	{
		error_msg += "\t- Het Email adres is niet ingevuld\n";
		error = 1;
	}
	
	if (document.form1.subject.value == "" ) 
	{
		error_msg += "\t- Er is geen onderwerp ingevuld\n";
		error = 1;
	}

	var input=document.form1.input.value;	
	if (input == ""  || input.length  < 10) 
	{
		error_msg += "\t- Het bericht moet minimal 10 tekens bevatten\n";
		error = 1;
	}

	if (error ==1)
	{
		window.alert(error_msg);	
		return false;
	}
	else 
	{
		document.form1.Submit.disabled=true
		document.form1.Submit.value='Bezig met versturen'
		document.form1.submit(); 
	}
}

function addBookmark(title,url) 
{ 
	if (window.sidebar) 
	{  
		window.sidebar.addPanel(title, url,"");  
	} 
	else if( document.all ) 
	{ 
		window.external.AddFavorite( url, title); 
	} 
	else if( window.opera && window.print ) 
	{ 
		return true; 
	} 
} 

function mailing_fields (field, type){
	if (type == 'focus'){	
		if (field.value == 'Uw naam' || field.value == 'Uw e-mail' )	field.value = '';
	}
	else {
		if (field.value == ''){
			if (field.name == 'mailing_name') field.value = 'Uw naam';
			else if (field.name == 'mailing_email') field.value = 'Uw e-mail';
		}
	}
}