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

var z = new Array();
function showmail(id, mail) {
	if (z[id] != 1) {
		document.getElementById(id).innerHTML = mail;
		document.getElementById(id).style.display = ("block");
		document.getElementById(id).style.opacity = (100);
		fadeIn(id, 200);
		z[id] = 1;
	} else {
		fadeOut(id, 200);
		setTimeout("trueclose('"+id+"')", 200);
		z[id] = 0;
	}
}


function trueclose(id) {
	document.getElementById(id).style.display = ("none");
	document.getElementById(id).innerHTML = '';
}