var Nav4 = ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4))
var isIE = !Nav4;
// One object tracks the current modal dialog opened from this window.
var dialogWin = new Object()
// Generate a modal dialog.
// Parameters:
//    url -- URL of the page/frameset to be loaded into dialog
//    width -- pixel width of the dialog window
//    height -- pixel height of the dialog window
//    returnFunc -- reference to the function (on this page)
//                  that is to act on the data returned from the dialog
//    args -- [optional] any data you need to pass to the dialog
function openDialog(url, width, height, returnFunc, args) {
openResizableDialog(url, 'true', width, height, returnFunc, args);
}
function openResizableDialog(url, resizeFlag, width, height, returnFunc, args) {
if (!dialogWin.win || (dialogWin.win && dialogWin.win.closed)) {
// Initialize properties of the modal dialog object.
dialogWin.returnFunc = returnFunc
dialogWin.returnedValue = ""
dialogWin.args = args
dialogWin.url = url
dialogWin.width = width
dialogWin.height = height
// Keep name unique so Navigator doesn't overwrite an existing dialog.
dialogWin.name = (new Date()).getSeconds().toString()
// Assemble window attributes and try to center the dialog.
var resizeStr = "resizable=no";
if (resizeFlag == 'true') resizeStr = "resizable=yes";
if (Nav4) {
// Center on the main window.
dialogWin.left = window.screenX +
   ((window.outerWidth - dialogWin.width) / 2)
dialogWin.top = window.screenY +
   ((window.outerHeight - dialogWin.height) / 2)
var attr = "screenX=" + dialogWin.left +
   ",screenY=" + dialogWin.top + ","+resizeStr+",width=" +
   dialogWin.width + ",height=" + dialogWin.height+ ", modal=yes";
} else {
// The best we can do is center in screen.
dialogWin.left = (screen.width - dialogWin.width) / 2
dialogWin.top = (screen.height - dialogWin.height) / 2
var attr = "left=" + dialogWin.left + ",top=" +
   dialogWin.top + ",width=" + dialogWin.width +
   ",height=" + dialogWin.height+","+resizeStr
}
attr += ',scrollbars=yes';
// Generate the dialog and make sure it has focus.
dialogWin.win=window.open(dialogWin.url, dialogWin.name, attr)
dialogWin.win.focus()
} else {
dialogWin.win.focus()
}
dialogWin.win.dialogWin = dialogWin;
}
// Event handler to inhibit Navigator form element
// and IE link activity when dialog window is active.
function deadend() {
if (dialogWin.win && !dialogWin.win.closed) {
dialogWin.win.focus()
return false
}
}
// Since links in IE4 cannot be disabled, preserve
// IE link onclick event handlers while they're "disabled."
// Restore when re-enabling the main window.
var IELinkClicks
// Disable form elements and links in all frames for IE.
function disableForms() {
IELinkClicks = new Array()
alert("disableForms():"+frames.length)
for (var h = 0; h < frames.length; h++) {
for (var i = 0; i < frames[h].document.forms.length; i++) {
for (var j = 0; j < frames[h].document.forms[i].elements.length; j++) {
frames[h].document.forms[i].elements[j].disabled = true
}
}
IELinkClicks[h] = new Array()
for (i = 0; i < frames[h].document.links.length; i++) {
IELinkClicks[h][i] = frames[h].document.links[i].onclick
frames[h].document.links[i].onclick = deadend
}
frames[h].window.onfocus = checkModal
    	frames[h].document.onclick = checkModal
}
}
// Restore IE form elements and links to normal behavior.
function enableForms() {
for (var h = 0; h < frames.length; h++) {
for (var i = 0; i < frames[h].document.forms.length; i++) {
for (var j = 0; j < frames[h].document.forms[i].elements.length; j++) {
frames[h].document.forms[i].elements[j].disabled = false
}
}
for (i = 0; i < frames[h].document.links.length; i++) {
frames[h].document.links[i].onclick = IELinkClicks[h][i]
}
}
}
// Grab all Navigator events that might get through to form
// elements while dialog is open. For IE, disable form elements.
function blockEvents() {
if (Nav4) {
window.captureEvents(Event.CLICK | Event.MOUSEDOWN | Event.MOUSEUP | Event.FOCUS)
window.onclick = deadend
} else {
disableForms()
}
window.onfocus = checkModal
}
// As dialog closes, restore the main window's original
// event mechanisms.
function unblockEvents() {
if (Nav4) {
window.releaseEvents(Event.CLICK | Event.MOUSEDOWN | Event.MOUSEUP | Event.FOCUS)
window.onclick = null
window.onfocus = null
} else {
enableForms()
}
}
// Invoked by onFocus event handler of EVERY frame,
// return focus to dialog window if it's open.
function checkModal() {
setTimeout("finishChecking()", 50)
return true
}
function finishChecking() {
if (dialogWin.win && !dialogWin.win.closed) {
dialogWin.win.focus()
}
}
//**************************
//  END MODAL DIALOG CODE
//**************************/