function opacity(id, opacStart, opacEnd, millisec) {
	var object = document.getElementById(id).style;
	var speed = Math.round(millisec / 100);
	var timer = 0;
	if(opacStart > opacEnd) {
		object.backgroundColor = "#FFFF99";
		for(i = opacStart; i >= opacEnd; i--){setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));timer++;}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++){setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));timer++;}
		 
	}
	
}
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}