function requestObj() {
	var req = false;
	try { req = new XMLHttpRequest(); }
	catch(e) {
		try { req = new ActiveXObject('Microsoft.XMLHTTP'); }
			catch(e) {}
	}
	return req;
}
function send_xmlhttprequest(obsluha, method, url, content, headers) {
	var xmlhttp = requestObj();
	if (!xmlhttp) {
		return false;
	}
	xmlhttp.open(method, url, true);
	xmlhttp.onreadystatechange = function() {
		obsluha(xmlhttp);
	};
	if (headers) {
		for (var key in headers) {
			xmlhttp.setRequestHeader(key, headers[key]);
		}
	}
	xmlhttp.send(content);
	return true;
}
function sendClassicRequest( post_params, get_params ) {
	var headers = new Array();
	headers['Content-Type'] = 'application/x-www-form-urlencoded';
	var url = './ajax-request.php';
	if (get_params != '') { url = url + '?' + get_params; }
	var content = 'mode=ajax';
	if (post_params != '') { content = content + '&' + post_params; }
	send_xmlhttprequest(function_process, 'POST', url, content, headers);
}
function sendUpdateHTMLRequest(functionProcess, postParams, getParams) {
	var headers = new Array();
	headers['Content-Type'] = 'application/x-www-form-urlencoded';
	var url = './index.php';
	if (getParams != '') 
		url = url+'?'+getParams;
	var content = 'mode=ajax';
	if (postParams != '') 
		content = content+'&'+postParams;
	send_xmlhttprequest(functionProcess, 'POST', url, content, headers);
}

function getUrl() {
	var url = document.getElementById('get').value;
	if (url.substring(0, 1) == '?') { url = url.substring(1, url.length); }
	return url;
}
function winH() {
   if (window.innerHeight)
      /* NN4 a kompatibilní prohlížeče */
      return window.innerHeight;
   else if (document.documentElement && document.documentElement.clientHeight)
      /* MSIE6 v std. režimu - Opera a Mozilla již uspěly s window.innerHeight */
      return document.documentElement.clientHeight;
   else if (document.body && document.body.clientHeight)
      /* starší MSIE + MSIE6 v quirk režimu */
      return document.body.clientHeight;
   else
      return null;
}
function isMozila() {
   if (window.innerHeight) return true;
   	else if (document.documentElement && document.documentElement.clientHeight) return false;
	return false;
}
function clear_menu_items() {
	var menu_items = document.getElementsByTagName('a');
	for (var i=0; i < menu_items.length; i++) {
		var menu_item = menu_items[i];
		var menu_item_id = menu_item.getAttribute('id');
		if ((menu_item_id != '') && (menu_item_id != null) && (menu_item_id.substring(0, 5) == 'menu_') && (menu_item.className == 'current')) { 
			menu_item.className = '';
		}
	}
}
function function_process(xmlhttp) {
	if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {
		var form_name = '';
		var redirect = '';
		var result = xmlhttp.responseXML.getElementsByTagName('result');
		for (var i=0; i < result.length; i++) {
			var child = result[i];
			if (child.firstChild != null) {
				var child_name = child.getAttribute('name');
				// identifikace formulare
				if (child_name == 'form_name') { form_name = child.firstChild.data; }
				// presmer
				if (child_name == 'redirect') {
					document.location.href = child.firstChild.data;
				}
				// spusteni nejake funkce
				if (child_name == 'function') {
					var child_function_name = child.firstChild.data;
					// vycisteni vsech polozek menu
					if (child_function_name == 'clear_menu_items') { clear_menu_items(); }
					// zobrazeni fckeditoru
				}
				// generovani funkce pro ajax
				if (child_name == 'sendClassicRequest') {
					var params = child.getAttribute('param');
					sendClassicRequest('', params);
				}
				// chybova hlaska
				if (child_name == 'alert_message') {
					if (child.firstChild.data != '' ) {
					}
				}
				// uprava nejakeho objektu
				if (child_name == 'change_element') {
					var elemnt_id = child.getAttribute('id');
					var elemnt = document.getElementById(elemnt_id);
					if (elemnt != null) {
						var elemnt_param = child.getAttribute('param');
						//var child = child.firstChild;
						//var child_value = child.firstChild.data;
						if ((elemnt_param == 'innerHTML') || (elemnt_param == 'value')) { 
							element_data = child.getElementsByTagName('data');
							element_innerhtml = '';
							if ((element_data == null) || (element_data.length == 0)) {
								element_innerhtml = child.firstChild.data;
							}
							if (element_data != null) {
								for (var d=0; d < element_data.length; d++) {
									element_innerhtml = element_innerhtml + element_data[d].firstChild.data;
								}
							}
							if (elemnt_param == 'innerHTML') {
								elemnt.innerHTML = element_innerhtml;
							}
							if (elemnt_param == 'value') {
								elemnt.value = element_innerhtml;
							}
						}
						if (elemnt_param == 'href') { elemnt.href = child.firstChild.data; }
						if (elemnt_param == 'clear_value') { elemnt.value = ''; }
						if (elemnt_param == 'class') { 
							elemnt_class = child.firstChild.data;
							if ((elemnt.getAttribute('if_class') != null) && (elemnt.getAttribute('if_class') != '') && (elemnt.className != elemnt.getAttribute('if_class'))) {
								elemnt_class = elemnt.className;
							}
							elemnt.className = elemnt_class;
						}
						if (elemnt_param == 'style.display') { elemnt.style.display = child.firstChild.data; }
						if (elemnt_param == 'selectedIndex') { elemnt.selectedIndex = child.firstChild.data; }
					} else {
					}
				}
				if ((child_name == 'change_form_item') && (form_name != '') && (child.getAttribute('id') != '')) {
					var form_item_id = child.getAttribute('id');
					var form_item = document.forms[form_name][form_item_id];
					if (form_item != null) {
						var elemnt_param = child.getAttribute('param');
						if (elemnt_param == 'value') { form_item.value = child.firstChild.data; }
					}
				}
				if (child_name == 'displayPopupWindow') {
					element_data = child.getElementsByTagName('data');
					element_innerhtml = '';
					if ((element_data == null) || (element_data.length == 0)) {
						element_innerhtml = child.firstChild.data;
					}
					if (element_data != null) {
						for (var d=0; d < element_data.length; d++) {
							element_innerhtml = element_innerhtml + element_data[d].firstChild.data;
						}
					}
					if (element_innerhtml != '') {
						if ( !document.getElementById( 'popupWindowForm' ) ) {
							var popupWindowForm = document.createElement( 'div' );
							popupWindowForm.setAttribute( 'id', 'popupWindowForm' );
							document.body.appendChild( popupWindowForm );
						}
						showPopupWindowForm(element_innerhtml);
					}
				}
				if (child_name == 'closePopupWindow') {
					hidePopupWindowForm();
				}
			}
		}
		if (redirect != '') { document.location.href = redirect; }
		if (document.getElementById('table_formular') != null) {
			var table = document.getElementById('table_formular');
			if (table != null) {
				var elements = table.getElementsByTagName('td');
				if (elements != null) {
					for (var i=0; i < elements.length; i++) {
						var element_td = elements[i];
						if (element_td != null) { element_td.disabled = false; }
						if (document.getElementById('input_'+i)!=null) { document.getElementById('input_'+i).disabled = false; }
					}
				}
			}
		}
    }
}
function encodeString(value) {
	return encodeURIComponent(value);
}
function selectFormSubmitButton( form_name, submitButtonName ) {
	if ((document.forms[form_name] != null) && (document.forms[form_name].formSubmitButton != null)) {
		document.forms[form_name].formSubmitButton.value = submitButtonName;
	}
}
function sendFormSubmitRequest( form_name, get_params, submitButtonName ) {
	var headers = new Array();
	headers['Content-Type'] = 'application/x-www-form-urlencoded';
	var url = './index.php';
	if (get_params != '') { url = url + '?' + get_params; }
	var content = 'mode=ajax&url=http://www.bigbazar.cz/&path=/var/www/bigbazar.cz/web/&language=&resolution_width=';
	for (var i=0; i < document.forms[form_name].length; i++) {
		var item = document.forms[form_name][i];
		if ((item.type!='submit') || ((item.type=='submit') && (item.name==submitButtonName))) {
			var item_value = item.value;
			if (item.name.indexOf('[]')>0) {
				item_value = '';
				for (var j=0; j < item.length; j++) {
					if (item.options[j].selected == true) {
						if (item_value != '') { item_value = item_value + ';'; }
						item_value = item_value + item.options[j].value;
					}
				}
			}
			if (content != '') { content = content + '&'; }
			if (item.type == 'checkbox') {
				if (item.checked == true) { item_value = 'on'; }
					else { item_value = ''; }
			}
			content = content + item.name + '=' + encodeString(item_value);
		}
	}
	if (!send_xmlhttprequest(function_process, 'POST', url, content, headers)) {
		return false;
	}
}
function showPopupWindowForm(formContent)
{
	if ( !document.getElementById( 'xdivmasking' ) )
	{
		var divEle = document.createElement( 'div' );
		divEle.setAttribute( 'id', 'xdivmasking' );
		document.body.appendChild(divEle);
		var divSty = document.getElementById( 'xdivmasking' ).style;
		divSty.position = 'absolute'; divSty.top = '0px'; divSty.left = '0px';
		divSty.zIndex = '46'; divSty.opacity = '.50'; divSty.backgroundColor = '#000';
		divSty.filter = 'alpha(opacity=50)';
		var divFram = document.createElement( 'iframe' );
		divFram.setAttribute( 'id', 'xmaskframe' );
		document.body.appendChild( divFram );
		divSty = document.getElementById( 'xmaskframe' ).style;
		divSty.position = 'absolute'; divSty.top = '0px'; divSty.left = '0px';
		divSty.zIndex = '45'; divSty.border = 'none'; divSty.filter = 'alpha(opacity=0)';
	}
	divobj = document.getElementById( 'xdivmasking' );
	waitifrm = document.getElementById( 'xmaskframe' );
	waitifrm.style.display = divobj.style.display = 'block';
	if ( document.getElementById( 'formDiv' ) == null ) {
		var formDiv = document.createElement( 'div' );
		formDiv.setAttribute( 'id', 'formDiv' );
		document.body.appendChild( formDiv );
	}
	var formDiv = document.getElementById( 'formDiv' );
	formDiv.className = 'popupWindowForm';
	formDiv.innerHTML = formContent;
	formDiv.innerHTML = 
	'<div id="formDivTitle" class="popupWindowFormTitle">'+
		'<button class="close" value="&nbsp;" title="Zavřít" onclick="hidePopupWindowForm();"/></button>'+
		'<div class="title">Formulář</div>'+
	'</div>'+
	'<div class="popupWindowFormContent">'+
		'<img src="" id="formDivContentWidth" align="left" width="1" height="0" style="border-width:0px;height:0px;">'+
		'<img src="" id="formDivContentHeight" align="left" width="0" height="1" style="border-width:0px;width:0px;">'+
		formContent+
	'</div>';
	formDiv.style.display = 'block';
	formDiv.style.top = (((document.documentElement.clientHeight/2) + document.documentElement.scrollTop) - (formDiv.clientHeight/2))+'px';
	formDiv.style.left = (((document.documentElement.clientWidth/2) + document.documentElement.scrollLeft) - (formDiv.clientWidth/2))+'px';
	document.getElementById('formContent').style.width = (formDiv.clientWidth-14)+'px';
	document.getElementById('formContent').style.height = (formDiv.clientHeight-61)+'px';
	Drag.init(document.getElementById('formDivTitle'), formDiv);
	resizePopupWindowForm();
}
function hidePopupWindowForm() {
	var divobj = document.getElementById( 'xdivmasking' );
	var waitifrm = document.getElementById( 'xmaskframe' );
	var formDiv = document.getElementById( 'formDiv' );
	waitifrm.style.display = divobj.style.display = formDiv.style.display = 'none';}
function resizePopupWindowForm() {
	var divobj = document.getElementById( 'xdivmasking' );
	var waitifrm = document.getElementById( 'xmaskframe' );
	if ((waitifrm!=null) && (divobj!=null))
		waitifrm.style.display = divobj.style.display = 'none';
	var dsh = document.documentElement.scrollHeight;
	var dch = document.documentElement.clientHeight;
	var dsw = document.documentElement.scrollWidth;
	var dcw = document.documentElement.clientWidth;
	var bdh = ( dsh > dch ) ? dsh : dch;
	var bdw = ( dsw > dcw ) ? dsw : dcw;
	if ((waitifrm!=null) && (divobj!=null)) {
		waitifrm.style.height = divobj.style.height = dch/*bdh*/ + 'px';
		waitifrm.style.width = divobj.style.width = dcw/*bdw*/ + 'px';
		waitifrm.style.display = divobj.style.display = 'block';
	}
}