$(document).ready(function() {
	var old = $('#bg_top').height(),
		new_height = $(document).height() - $('#banner').height() - 382;
	
	$('#bg_top').height(Math.min(old, new_height));
	
	// Form prefilled fields
	$('form.empty_on_change').find('input, textarea')
		.focus(function() {
			if( $(this).hasClass('unchanged') )
				$(this).removeClass('unchanged').data('old_val', $(this).val()).val('');
		})
		.blur(function() {
			var old = $(this).data('old_val');
			
			if( $(this).val() == '' || $(this).val() == old )
				$(this).val(old).addClass('unchanged');
		});
	
	// Form submit button
	$('#send_mail').click(function() {
		$('#comment_form form').submit();
	});
});


function submitForm(form,klasse,functie,target,returnType){	
	$('#'+target).removeClass();
	$('#'+target).html('');
	var params = $('#'+form).serialize();		
	$.get(
		'index.php?call='+klasse+'/'+functie,
		params,
		function(data){											
			if(data.error != false){
				$('#'+target).addClass('error');
				$('#'+target).html(data.error);				
			} else {
				$('#'+target).addClass('message');
				$('#'+target).html(data.message);
				$('#'+form).find(':input').each(function() { $(this).val('');});	 			
			}				
					
		},
		returnType
	);	
	
}