function toggle(ID){
	if (document.getElementById){
		var style2 = document.getElementById(ID).style;
		if (style2.display == ""){
				style2.display = "block";}
		else if (style2.display == "block"){
				style2.display = "";}
  }
	else if (document.all){//old msie versions
		var style2 = document.all[ID].style;
		if (style2.display == ""){
				style2.display = "block";}
		else if (style2.display == "block"){
				style2.display = "";}
	}
	else if (document.layers){//nn4 works
		var style2 = document.layers[ID].style;
		if (style2.display == ""){
				style2.display = "block";}
		else if (style2.display == "block"){
				style2.display = "";}
	}
}
function hide(ID){
	if (document.getElementById){
		var style2 = document.getElementById(ID).style;
		style2.display = "";
  }
}

function testEmailAdress(a) {return (!(a.match(/[\w\.\-\_]+\@[\w\-\_]+[\w\.\-\_]+[\w]{2,4}/)));}

function check_form(form){
	if (testEmailAdress(form.email.value)){
		alert('Wprowadź poprawny adres email.');
		form.email.focus();
		return;
	}
	form.submit();
}


/*
function toggle(ID){
	if (document.getElementById){
		var style2 = document.getElementById(ID).style;
				style2.display = style2.display? "":"block";
  }
	else if (document.all){//old msie versions
		var style2 = document.all[ID].style;
				style2.display = style2.display? "":"block";
	}
	else if (document.layers){//nn4 works
		var style2 = document.layers[ID].style;
				style2.display = style2.display? "":"block";
	}
}*/