function blendimage(divid, imageid, imagefile, millisec) {
    var speed = Math.round(millisec / 100);
    var timer = 0;
    //set the current image as background
    //document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(divid).src + ")";

    //make image transparent
    changeOpac(0, divid);
    
    //make new image
    document.getElementById(divid).src = imagefile;

    //fade in image
    for(i = 0; i <= 100; i++) {
        setTimeout("changeOpac(" + i + ",'" + divid + "')",(timer * speed));
        timer++;
    }
} 
function changeimage(divid, imageid, imagefile, millisec) {
    var speed = Math.round(millisec / 100);
    var timer = 0;
    //set the current image as background
    document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";

    //make image transparent
    changeOpac(0, divid);
    
    //make new image
    document.getElementById(imageid).src = imagefile;

    //fade in image
    for(i = 0; i <= 100; i++) {
        setTimeout("changeOpac(" + i + ",'" + divid + "')",(timer * speed));
        timer++;
    }
} 

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 + ")"; 
}