// astpp.js

// from http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();

// *** BROWSER VERSION ***
// Note: On IE5, these return 4, so use is_ie5up to detect IE5.
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);

// Note: Opera and WebTV spoof Navigator.  We do strict client detection.
// If you want to allow spoofing, take out the tests for opera and webtv.
var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
			&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
			&& (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_navonly = (is_nav && ((agt.indexOf(";nav") != -1) ||
				(agt.indexOf("; nav") != -1)) );
var is_nav6 = (is_nav && (is_major == 5));
var is_nav6up = (is_nav && (is_major >= 5));
var is_gecko = (agt.indexOf('gecko') != -1);

var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
var is_ie4up  = (is_ie && (is_major >= 4));
var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);

// KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
// or if this is the first browser window opened.  Thus the
// variables is_aol, is_aol3, and is_aol4 aren't 100% reliable.
var is_aol   = (agt.indexOf("aol") != -1);
var is_aol3  = (is_aol && is_ie3);
var is_aol4  = (is_aol && is_ie4);
var is_aol5  = (agt.indexOf("aol 5") != -1);
var is_aol6  = (agt.indexOf("aol 6") != -1);

var is_opera = (agt.indexOf("opera") != -1);
var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
var is_opera6 = (agt.indexOf("opera 6") != -1 || agt.indexOf("opera/6") != -1);
var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);

var is_webtv = (agt.indexOf("webtv") != -1); 

var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
var is_AOLTV = is_TVNavigator;

var is_hotjava = (agt.indexOf("hotjava") != -1);
var is_hotjava3 = (is_hotjava && (is_major == 3));
var is_hotjava3up = (is_hotjava && (is_major >= 3));

// *** JAVASCRIPT VERSION CHECK ***
var is_js;
if (is_nav2 || is_ie3) is_js = 1.0;
else if (is_nav3) is_js = 1.1;
else if (is_opera5up) is_js = 1.3;
else if (is_opera) is_js = 1.1;
else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2;
else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3;
else if (is_hotjava3up) is_js = 1.4;
else if (is_nav6 || is_gecko) is_js = 1.5;
// NOTE: In the future, update this code when newer versions of JS
// are released. For now, we try to provide some upward compatibility
// so that future versions of Nav and IE will show they are at
// *least* JS 1.x capable. Always check for JS version compatibility
// with > or >=.
else if (is_nav6up) is_js = 1.5;
// NOTE: ie5up on mac is 1.4
else if (is_ie5up) is_js = 1.3
// HACK: no idea for other browsers; always check for JS version with > or >=
else is_js = 0.0;

// end of browser detection


// *** ERROR MESSAGES ***
var st_errmsg_EmptyField	= "Не заполнено необходимое поле!";


function reload(path)
{
  location.href = path;
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			if (document[changeImages.arguments[i]].nodeName == "IMG")
			{
				document[changeImages.arguments[i]].attributes["src"].nodeValue = changeImages.arguments[i+1];
			}
//			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages(elem, arg) {
	if (document.images) {
		elem = newImage(arg);
		preloadFlag = true;
	}
}

function MozillaInsertText(element, text, pos) 
{
    element.value = element.value.slice(0,pos)+text+element.value.slice(pos);
}

// Add Tag
function AddTag(theFormName, theFieldName, t1,t2)
{
	var theForm = document.forms[theFormName];
	var theField = theForm.elements[theFieldName];

	if (is_ie5up)
	{
		if (document.selection)
		{
			theField.focus();

			var txt = theField.value;
			var str = document.selection.createRange();

			if (str.text == "")
				str.text = t1 + t2;
			else if (txt.indexOf(str.text) >= 0)
				str.text = t1 + str.text + t2;
			else
				theField.value = txt + t1 + t2;
			str.select();
		}
	} 
	else if (is_nav4up)
	{
		var element = theField;
		var sel_start = element.selectionStart;
		var sel_end = element.selectionEnd;
		MozillaInsertText(element, t1, sel_start);
		MozillaInsertText(element, t2, sel_end+t1.length);
		element.selectionStart = sel_start;
		element.selectionEnd = sel_end+t1.length+t2.length;
		element.focus();    
	}    
	else
	{
		theField.value = theField.value + t1 + t2;
		if (is_opera5up)
			theField.focus();
	}
}

function AddSmile(sm)
{
//	sm = ' ' + sm;
	if (is_ie5up)
	{
		if (document.selection)
		{
			document.forms.NewMsg.t_text.focus();

			var txt = document.forms.NewMsg.t_text.value;
			var str = document.selection.createRange();

			if (str.text == "")
			{
				str.text = sm;
			}
			else if (txt.indexOf(str.text) >= 0)
			{
				str.text = str.text + sm;
			}
			else
			{
				document.forms.NewMsg.t_text.value = txt + sm;
			}
			str.select();
		}
	} 
	else if (is_nav4up)
	{
		var element = document.forms.NewMsg.t_text;
		var sel_start = element.selectionStart;
		var sel_end = element.selectionEnd;
		MozillaInsertText(element, sm, sel_end);
		element.selectionStart = sel_start;
		element.selectionEnd = sel_end+sm.length;
		element.focus();    
	}    
	else
	{
		document.forms.NewMsg.t_text.value = document.forms.NewMsg.t_text.value + sm;
		if (is_opera5up)
			document.forms.NewMsg.t_text.focus();
	}
}

function SetLFocus(fld)
{
	if (fld == 0)
		document.forms.LoginForm.u_login.focus();
	else
		document.forms.LoginForm.u_passw.focus();
}


/////////////////////////////////////////////////////////////////////
//
//
//
function RemarkCheckboxes(theForm, tt)
{
	tt.checked;
	for (i = 0; document.forms[theForm].elements[i]; i++) {
		e = document.forms[theForm].elements[i];
		if (e.type == 'checkbox' && !e.disabled)
			e.checked = tt.checked;
	}
}

/////////////////////////////////////////////////////////////////////
//
//
//
function CheckedCheckboxes(theForm)
{
	for (i = 0; document.forms[theForm].elements[i]; i++) {
		e = document.forms[theForm].elements[i];
		if (e.type == 'checkbox' && e.checked)
			return true;
	}
	return false;
}

/////////////////////////////////////////////////////////////////////
//
//
//
function NotEmptyFormElements(theFormName, theFieldName)
{
	var isEmpty  = 1;
	var theForm = document.forms[theFormName];
	var theField = theForm.elements[theFieldName];
	// Whether the replace function (js1.2) is supported or not
	var isRegExp = (typeof(theField.value.replace) != 'undefined');

	if (!isRegExp) {
		isEmpty = (theField.value == '') ? 1 : 0;
	} else {
		var space_re = new RegExp('\\s+');
		isEmpty = (theField.value.replace(space_re, '') == '') ? 1 : 0;
	}
	if (isEmpty) {
//		theForm.reset();
		theField.select();
		alert(st_errmsg_EmptyField);
		theField.focus();
		return false;
	}

	return true;
}

//
// menu
//
function MM_findObj(n, d) //v4.0
{
	var p, i, x;
	if (!d)
		d = document;
	if ((p = n.indexOf("?")) > 0 && parent.frames.length) {
		d = parent.frames[n.substring(p+1)].document;
		n = n.substring(0, p);
	}

	if (!(x = d[n]) && d.all)
		x = d.all[n];
	for (i = 0; !x && i < d.forms.length; i++)
		x = d.forms[i][n];

	for (i=0; !x && d.layers && i < d.layers.length; i++)
		x = MM_findObj(n, d.layers[i].document);

	if (!x && document.getElementById)
		x = document.getElementById(n);
	return x;
}



function MM_showHideLayers() //v3.0
{
	var i, p, v, obj, args = MM_showHideLayers.arguments;

	for (i = 0; i < (args.length - 2); i += 3)
		if ((obj = MM_findObj(args[i])) != null) {
			v = args[i + 2];
			if (obj.style) {
				obj = obj.style;
				v = (v == 'show')? 'visible' : (v = 'hide')? 'hidden' : v;
			}
			obj.visibility = v;
		}
}