/*
This javascript contains methods that allow you to create a floating layer
on html pages.
INSTRUCTIONS:
1. On the HTML page, please make sure you load this Javascript.
This can be done by putting inside the
.... tag.
2. In the tag please add the method placeIt() to the 'onLoad'
javascript function to load up the floating layer, or else it would
not work.
This can be done by putting
works in conjunction with common.js
without it, this set of javascript would not work.
*/
//write the start tag of the floating layer element
function writeStartTag(floatName,left_value,top_value,width_value,visibility_boolean) {
if ((IE4)||(IE4_UP)||(NS6))
{
//check the visibility?
if (visibility_boolean) {
visibility_value = "visible";
}
else {
visibility_value = "hidden";
}
document.write("");
}
else if (NS4)
{
if (visibility_boolean)
{
visibility_value = "show";
}
else {
visibility_value = "hide";
}
document.write("");
}
}
//write the end tag of the floating layer element
function writeEndTag() {
if ((IE4)||(IE4_UP)||(NS6))
{
document.write("
");
}
else if (NS4)
{
document.write("");
}
}
//hide the float layer
function hideLayer(floatName) {
if ((IE4_UP)||(NS6))
{
document.getElementById(floatName).style.visibility='hidden';
}
else if (IE4) {
document.all[floatName].style.visibility='hidden';
}
else if (NS4) {
document.layers[floatName].visibility='hide';
}
}
//show the float layer
function showLayer(floatName) {
if ((IE4_UP)||(NS6)) {
document.getElementById(floatName).style.visibility='visible';
}
else if (IE4) {
document.all[floatName].style.visibility='visible';
}
else if (NS4) {
document.layers[floatName].visibility='show';
}
}
//check the visibility of the float layer
function checkVisible(floatName) {
var visible;
if ((IE4_UP)||(NS6)) {
visible_text = document.getElementById(floatName).style.visibility;
if (visible_text=="visible")
{
visible=true;
}
else if (visible_text=="hidden")
{
visible=false;
}
else {
visible=false;
}
}
else if (IE4) {
visible_text = document.all[floatName].style.visibility;
if (visible_text=="visible")
{
visible=true;
}
else if (visible_text=="hidden")
{
visible=false;
}
else {
visible=false;
}
}
else if (NS4) {
visible_text = document.layers[floatName].visibility;
if (visible_text=="show")
{
visible=true;
}
else if (visible_text=="hide")
{
visible=false;
}
else {
visible=false;
}
}
return visible;
}
// change the (y1 value) on the left to adjust the Y co-ordinate
function placeLayer(floatName,y1) {
if ((IE4_UP)||(NS6)) {
document.getElementById(floatName).style.top = document.body.scrollTop + (document.body.clientHeight - (document.body.clientHeight-y1));
}
else if (IE4) {
document.all[floatName].style.top = document.body.scrollTop + (document.body.clientHeight - (document.body.clientHeight-y1));
}
else if (NS4) {
document.layers[floatName].top = window.pageYOffset + (window.innerHeight - (window.innerHeight-y1))
}
window.setTimeout("placeLayer('" + floatName +"',"+ y1 +")", 10);
}
function automatedFloatLayer(floatName) {
var appear;
var wait=15000; //wait for 15 seconds
var after;
check_visibility = checkVisible(floatName);
//make sure floating layer is hidden.
if (check_visibility) {
hideIt(floatName);
}
//pick random time, to make float layer appear (max 10 seconds)
appear = Math.round(Math.random()*10)*1000;
//if 0 seconds, make it 1 second
if (appear==0)
{
appear=1000;
}
after = appear + wait; //seconds before appear time + wait time
window.setTimeout("showIt('" + floatName +"')",appear);
window.setTimeout("hideIt('" + floatName +"')",after);
//probably would not be used
//window.setTimeout("automatedFloatLayer('" + floatName +"')", 5000);
}