var timeoutID;
//var intervalID;
//var imgArray = new Array( );
//imgArray[0] = "url(Images/Style1/facesW.jpg)";
//imgArray[1] = "url(Images/Style1/facesM.jpg)";
//facesLeft: woman: 1; child: 21; man: 41
//facesRightight: man: 1; child: 21; woman: 41
//RIGHT FACES
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 / 101);
    object.MozOpacity = (opacity / 101);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}
function shiftOpacity(id, millisec) { 
    //if an element is invisible, make it visible, else make it ivisible 
    if(document.getElementById(id).style.opacity == 0) { 
        opacity(id, 0, 100, millisec); 
    } else { 
        opacity(id, 100, 0, millisec); 
    } 
} 
function curOpac(id, opacEnd, millisec) { 
    //standard opacity is 100 
    var currentOpac = 100; 
     
    //if the element has an opacity set, get it 
    if(document.getElementById(id).style.opacity < 100) { 
        currentOpac = document.getElementById(id).style.opacity * 100; 
    } 

    //call for the function that changes the opacity 
    opacity(id, currentOpac, opacEnd, millisec) 
} 
function fadeOut(id, millisec) { 
	opacity(id, 100, 0, millisec); 
} 
function fadeIn(id, millisec) { 
	opacity(id, 0, 100, millisec);
} 
function disappear(id) {
	//if(document.getElementById(id).style.visibility == "visible") {
	document.getElementById(id).style.visibility = "hidden";
	//}
}
function appear(id) {
	//if(document.getElementById(id).style.visibility == "visible") {
	document.getElementById(id).style.visibility = "visible";
	//}
}