function enterPasswordField(obj) {
	if(obj.value==''){
		obj.style.backgroundImage=''
	}
}
function onExitPasswordField(obj) {
	if(obj.value==''){
		obj.style.backgroundImage='url(img/bg_password.gif)'
	}
}

function showMoreInfo() {
	document.getElementById('layerMoreInfo').style.visibility='visible';
}
function hideMoreInfo() {
	document.getElementById('layerMoreInfo').style.visibility='hidden';
}

function showLang(obj) {
	if(document.getElementById(obj).className=='notVisible') {
		document.getElementById(obj).className='visible';
	}
	else {
		document.getElementById(obj).className='notVisible';
	}
}