/* set the opacity of the element (between 0 and 100) */
function setOpacity(elementId,level) {
	var el = document.getElementById(elementId);
	el.style.opacity = level/100;
	el.style.MozOpacity = level/100;
	el.style.KhtmlOpacity = level/100;
	el.style.filter = "alpha(opacity=" + (level) + ");";
}

/*var duration = 1000;  /* 1000 millisecond fade = 1 sec */
/*var steps = 40;       /* number of opacity intervals   */
/*var delay = 5000;     /* 5 sec delay before fading out */


/*function effect_fadeIn(elementId, duration, steps){
	for (var i=0; i<=100; i+=(Math.floor((1/steps)*100))) {
		setTimeout("setOpacity(\"" + elementId + "\"," + i + ")", (i/100) * duration);
	}
}

function fadeIn(elementId, delay, duration, steps){
	setTimeout("effect_fadeIn(\"" + elementId + "\"," + duration + "," + steps + ")", delay);
}*/

function effect_fadeOut(elementId, duration, steps) {
	for (var i=0; i<=100; i+=(Math.floor((1/steps)*100))) {
		setTimeout("setOpacity(\"" + elementId + "\"," + (100 - i) + ")", (i/100) * duration);
	}
}

function fadeOut(elementId, delay, duration, steps) {
	setTimeout("effect_fadeOut(\"" + elementId + "\"," + duration + "," + steps + ")", delay);
}