function fade(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 + ")"; 
} 

function writeEmail(user, host, country) {
document.write('<a class=bodytext href=mailto:',user,'@',host,'.',country,'>',user,'@',host,'.',country,'</a>');
}

function PopupPage(doc, w, h) {
  if (!w) w=650; 
  if (!h) h=500; 
  win = window.open(doc, "FotoCatalog", 'status=no,toolbar=0,scrollbars=1,menubar=0,titlebar=0,resizable=0,width='+w+',height='+h);
  win.moveTo(screen.width/2-w/2, screen.height/2-h/2);
  win.focus();
}