Event.observe(window, 'load', function() {window.setTimeout(populateLoginForm, 100);});

function populateLoginForm() {
	username = document.getElementById('login_username');
	password = document.getElementById('login_password');
	
	if ( !username || !password ) return;
	
	if ( username.value == '' ) {
		username.style.backgroundImage = 'url(/img/login_username.gif)';
	}
	
	if ( password.value == '' ) {
		password.style.backgroundImage = 'url(/img/login_password.gif)';
	}
	
	username.onfocus = function() {
		this.style.background = '#fff';
	}
	
	username.onblur = function() {
		if ( this.value == '' ) {
			this.style.backgroundImage = 'url(/img/login_username.gif)';
		}
	}
	
	password.onfocus = function() {
		this.style.background = '#fff';
	}
	
	password.onblur = function() {
		if ( this.value == '' ) {
			this.style.backgroundImage = 'url(/img/login_password.gif)';
		}
	}
}