// <![CDATA[
	function setVisible(obj, bool){

// see if it's a document id, if it's not, then it must be an obj reference
	if(typeof obj == "string")
		obj = document.getElementById(obj);

// if user chose false, then lets see if the obj needs to be hidden,
//and if it does, then hide it.
	
	if(bool == false){
		if(obj.style.visibility != 'hidden');
			obj.style.visibility = 'hidden';
		}

// the user chose true, or omitted the second parameter.
//see if the object is visible. If it isn't, the show it.

	else { 
		if(obj.style.visibility != 'visible');
		obj.style.visibility = 'visible';
	}
}
// ]]>



function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        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++;
        }
    }
}

//change the opacity for different browsers
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 + ")";
}