/* Functions that swap images. */

function swap(image_num,roll_num){
	for (j = 1; j < document.images.length + 1; j++)
	{
	var image_pass='l_menu' + j;
		if (image_num !== j)
			{
			di21(image_pass,'images/'+ image_pass + '.gif');
			}
		else if (image_num == j)
			{
		di21(image_pass,'images/'+ image_pass +'_f'+ roll_num +'.gif');
			}
	}
}

var theWord = "private";

function di20(id, newSrc) {
    var theImage = FWFindImage(document, id, 0);
    if (theImage) {
        theImage.src = newSrc;
    }
}

function di21(id, newSrc) {
    var theImage = FWFindImage(document, id, 0);
    if (theImage) {
        theImage.src = newSrc;
    }
}
/* Functions that track and set toggle group button states. */

function FWFindImage(doc, name, j) {
    var theImage = false;
    if (doc.images) {
        theImage = doc.images[name];
    }
    if (theImage) {
        return theImage;
    }
    if (doc.layers) {
        for (j = 0; j < doc.layers.length; j++) {
            theImage = FWFindImage(doc.layers[j].document, name, 0);
            if (theImage) {
                return (theImage);
            }
        }
    }
    return (false);
}

function passwd(link){
if (passwd_count == 3){
	alert("Sorry, no more tries");
	return;
	}

pswd = prompt("Please Enter Password", "");

	if (pswd == theWord)
		top.location=link;
	else
		alert("Sorry, that is incorrect");
		passwd_count=passwd_count + 1;
		return;
}

function showLayer(id) {
	document.getElementById(id).style.display = "block";
	return;
}

function hideLayer(id) {
	document.getElementById(id).style.display = "none";
	return;
}

function toggleLayer(id) {
	//alert(document.getElementById(id).style.display);
	if((document.getElementById(id).style.display == "")||(document.getElementById(id).style.display == "none")){
		document.getElementById(id).style.display = "block";
		return;
	}
	if(document.getElementById(id).style.display == "block"){
		document.getElementById(id).style.display = "none";
		return;
	}
	return;
}