function tarkistaLomake() {
	var f = document.forms['lomake'];
	var error = 0;
	
	//document.getElementById('yritys').style.background = "white";
	document.getElementById('nimi').style.background = "white";
	document.getElementById('email').style.background = "white";
	document.getElementById('puhelin').style.background = "white";
	
	//document.getElementById('yritys').style.color = "#000000";
	document.getElementById('nimi').style.color = "#000000";
	document.getElementById('email').style.color = "#000000";
	document.getElementById('puhelin').style.color = "#000000";
	
	//document.getElementById('error').innerHTML = ' ';
	
	/*if( f.yritys.value == '' ) {
		error++;
		document.getElementById('yritys').style.background = "#f20020";
		document.getElementById('yritys').style.color = "#ffffff";
	}*/
	
	if( f.nimi.value == '' ) {
		error++;
		document.getElementById('nimi').style.background = "#f20020";
		document.getElementById('nimi').style.color = "#ffffff";
	}
	
	if( f.email.value == '' ) {
		error++;
		document.getElementById('email').style.background = "#f20020";
		document.getElementById('email').style.color = "#ffffff";
	}
	
		if( f.puhelin.value == '' ) {
		error++;
		document.getElementById('puhelin').style.background = "#f20020";
		document.getElementById('puhelin').style.color = "#ffffff";
	}

	
	if( error > 0 ) {
		//document.getElementById('error').innerHTML = 'Täytä puuttuvat kohdat.';
		return false;
	}
	else return true;
	
}







function tarkistaKaverit() {
	var f = document.forms['kaveriform'];
	var error = 0;
	
	document.getElementById('kaveri1').style.background = "white";
	document.getElementById('kaveri2').style.background = "white";
	document.getElementById('kaveri3').style.background = "white";
	
	document.getElementById('kaveri1').style.color = "#000000";
	document.getElementById('kaveri1').style.color = "#000000";
	document.getElementById('kaveri1').style.color = "#000000";
	
	document.getElementById('error').innerHTML = ' ';
	
	if( f.kaveri1.value == '' && f.kaveri2.value == '' && f.kaveri3.value == '' ) {
		error++;
		document.getElementById('kaveri1').style.background = "#f20020";
		document.getElementById('kaveri1').style.color = "#ffffff";
		document.getElementById('kaveri2').style.background = "#f20020";
		document.getElementById('kaveri2').style.color = "#ffffff";
		document.getElementById('kaveri3').style.background = "#f20020";
		document.getElementById('kaveri3').style.color = "#ffffff";
	}

	
	if( error > 0 ) {
		document.getElementById('error').innerHTML = 'Anna ainakin yksi sähköpostiosoite.';
		return false;
	}
	else return true;
	
}





function openPopupWindow(addr, menubar) {
	window.open( addr, 'uutiskirje', 'toolbar=' + menubar + ',scrollbars=1,location=' + menubar + ',statusbar=0,menubar=0,resizable=1,width=800,height=500');
}