/* dojo.require("dojo.lfx.*"); */

var delay = 10000;
var transitionDuration = 2000;
var elementName = 'ylaa';

changeState = function( element ) {
    var op = dojo.html.getOpacity( element );
    if( op == 0 ) {
        dojo.lfx.html.fadeIn( element, transitionDuration ).play();
    }
    else {
        dojo.lfx.html.fadeOut( element, transitionDuration ).play();
    }
}



dojo.addOnLoad(function() {
    setInterval( "changeState( dojo.byId('" + elementName + "') )", delay )
});