vtimeout = Array();

function OpacOn(id) {
	clearTimeout(vtimeout[id]);
	if (getOpac('wp' + id) == 60) {
		opacity('wp' + id, 60, 100, 500); 
		opacity('wp' + id + 'menu1', 0, 100, 500);
		opacity('wp' + id + 'menu2', 0, 100, 500);
		opacity('wp' + id + 'menu3', 0, 100, 500);
		opacity('wp' + id + 'menu4', 0, 100, 500);
	}
}

function OpacOff(id) {
	vtimeout[id] = setTimeout('OpacOff2(' + id +')',200);
}

function OpacOff2(id) {
	opacity('wp' + id, 100, 60, 700),
	opacity('wp' + id + 'menu1', 100, 0, 500);
	opacity('wp' + id + 'menu2', 100, 0, 500);
	opacity('wp' + id + 'menu3', 100, 0, 500);
	opacity('wp' + id + 'menu4', 100, 0, 500);
}

function getOpac(id) {
	return (document.getElementById(id).style.opacity * 100);
}


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 + ")";
}