$(document).ready(function(){
//	jQuery(document).pngFix();
	
	if(jQuery.browser.msie && jQuery.browser.version=="6.0"){
	  $("#navmenu-h li").hover(
		function() { $(this).addClass("iehover"); },
		function() { $(this).removeClass("iehover"); }
	  );
	}
	
	$('.middle_header').cycle({
		timeout: 5000
	});
	
	$('#relaties').cycle({
		fx:'scrollUp',
		timeout: 4000,
		random:1
	});
	
	var originalFontSize = 12;
	$("#s1").click(function(){
		$('.tekst, .footer, .tekst p, .tekst li').css('font-size', 12);
		$('#submenu').css('font-size', 10);
		return false;
	});
	
	$("#s2").click(function(){
		$('.tekst, .footer, .tekst p, .tekst li').css('font-size', 14);
		$('#submenu').css('font-size', 12);
		return false;
	});
	
	$("#s3").click(function(){
		$('.tekst, .footer, .tekst p, .tekst li').css('font-size', 16);
		$('#submenu').css('font-size', 14);
		return false;
	});

}); 


function checkform(form) {
	var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,6}|\d+)$/i;
	var error=0;
	for (var x=0; form.elements[x]; x++ ) {
		if(form.elements[x].className.indexOf('verplicht')!=-1) {
			if (form.elements[x].type == 'select-one'){
				if (form.elements[x].options[form.elements[x].selectedIndex].value == "") error++;
			}else if (form.elements[x].type == 'radio'){
				error=1;
				for (i=form.elements[form.elements[x].name].length-1; i > -1; i--) {
					if (form.elements[form.elements[x].name][i].checked==true) {
						 error=0; i = -1;
					}
				}
			}else if (form.elements[x].type == 'checkbox'){
				if (!form.elements[x].checked) error++;
			}else{
				if(form.elements[x].name=="email"){
					if (emailfilter.test(form.elements[x].value)==false) error++
				}else{
					if (form.elements[x].value == "") error++;
				}
			}
			if(error>0){
				alert( "U heeft het verplichte veld '" + form.elements[x].title + "' niet (correct) ingevuld." );
	        		form.elements[x].focus();
			        return false ;
			}
		}
	}        
}