var Nav4 = ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) == 4))
var dialogWin = new Object()
function openDialog(url, width, height, returnFunc, args) {
	if (!dialogWin.win || (dialogWin.win && dialogWin.win.closed)) {
		dialogWin.returnFunc = returnFunc
		dialogWin.returnedValue = ""
		dialogWin.args = args
		dialogWin.url = url
		dialogWin.width = width
		dialogWin.height = height
		dialogWin.name = (new Date()).getSeconds().toString()
		if (Nav4) {
			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 + ",resizable=no,toolbar=no,location=no,width=" +
			   dialogWin.width + ",height=" + dialogWin.height
		} else {
			dialogWin.left = (screen.width - dialogWin.width) / 2
			dialogWin.top = (screen.height - dialogWin.height) / 2
			var attr = "left=" + dialogWin.left + ",top=" +
			   dialogWin.top + ",resizable=no,location=no,toolbar=no,width=" + dialogWin.width +
			   ",height=" + dialogWin.height
		}

		dialogWin.win=window.open(dialogWin.url, dialogWin.name, attr)
		dialogWin.win.focus()
	} else {
		dialogWin.win.focus()
	}
}

function deadend() {
	if (dialogWin.win && !dialogWin.win.closed) {
		dialogWin.win.focus()
		return false
	}
}

var IELinkClicks

function disableForms() {
	IELinkClicks = new Array()
	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
		}
	}
}


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]
		}
	}
}

function blockEvents() {
	if (Nav4) {
		window.captureEvents(Event.CLICK | Event.MOUSEDOWN | Event.MOUSEUP | Event.FOCUS)
		window.onclick = deadend
	} else {
		disableForms()
	}
	window.onfocus = checkModal
}

function unblockEvents() {
	if (Nav4) {
		window.releaseEvents(Event.CLICK | Event.MOUSEDOWN | Event.MOUSEUP | Event.FOCUS)
		window.onclick = null
		window.onfocus = null
	} else {
		enableForms()
	}
}

function checkModal() {
   setTimeout("finishChecking()", 50)
   return true
}

function finishChecking() {
   if (dialogWin.win && !dialogWin.win.closed) {
      dialogWin.win.focus()
   }
}


function applySettings() {
	if (document.returned.searchURL.value) {
		location.href = "main.html" + document.returned.searchURL.value
	}
}