function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 100;
	var countdown = opacStart;
    //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 + ")";
	if(opacity == 1){
		object.zIndex="-1"
	}
}
 
function delay(gap){ /* gap is in millisecs */
var then,now; then=new Date().getTime();
now=then;
while((now-then)<gap)
{now=new Date().getTime();}
}


/* Käyttö: document.write('E-mail: ' + osoite('etuosa', 'loppuosa'));
 */
function at()
{
    return '@'
}

function osoite(a, b)
{
    return a + at() + b;
    //return '<a href="mailto:' + a + at() + b + '">' + a + at() + b + '</a>';
}