// JavaScript Document

var popUpWin=0;

function pop_google_maps(url){
	if(popUpWin){
		if(!popUpWin.closed) popUpWin.close();
	}
var winl = (screen.width - 700) / 2;
var wint = (screen.height - 420) / 2;
winprops = 'height=420, width=700, top='+wint+', left='+winl+', scrollbars=0, resizable';
popUpWin = open(url, 'popUpWin', winprops);
	if (parseInt(navigator.appVersion) >= 4){ 
		popUpWin.window.focus();
	}
}

function validate_form(){
	isValid = false; 
	if(document.getElementById('mail').value == '' || document.getElementById('text').value == ''){
		alert('niet alle verplichte velden zijn ingevuld');		
	}else{
		isValid = true; 
	}
	return isValid;
}