function switchMenusTo(nr, display) {
//alert(nr);
  var stylev="";
  var mid="";
  var was_m = false;
  for(i=1; i<=6; i++) {
    if((i==nr) && (display == true)) {
      stylev="block";
      was_m = true;
    } else {
      stylev="none";
    }
    
    document.getElementById('submenu' + i).style.display = stylev;
    
    if(was_m == true) {
      document.getElementById('sub_menu').className = '';
    } else {
      document.getElementById('sub_menu').className = 'on';
    }   
  }
}

function skaiciuoti(form) {    
  var value_3 = form.value_3.value;
  var price = 0;
  
  var z = parseFloat(form.area.value);
  var area_c = 1.0;
  
    
  if(z > 2999) {
    area_c = 1.17;  
  } else if(z < 100) {
    area_c = 1.1;
  } else if(z < 200) {
    area_c = 1.05;  
  } else if(z < 300) {
    area_c = 1.0;  
  } else if(z < 500) {
    area_c = 1.05;  
  } else if(z < 1000) {
    area_c = 1.1;  
  } else if(z < 3000) {
    area_c = 1.13;  
  }    
  
  if(value_3 > 0) {
    price = (45 + parseInt(getCheckedValue(form.medziagos_))) * (form.area.value * area_c * form.value_1.value * form.value_2.value * form.value_3.value * getCheckedValue(form.value_4) * getCheckedValue(form.value_5) * getCheckedValue(form.value_6) * getCheckedValue(form.value_7) * getCheckedValue(form.value_8) * getCheckedValue(form.value_9)) + (getCheckedValue(form.krastine) * form.krastai.value);
  } else {
    price = (45 + parseInt(getCheckedValue(form.medziagos_))) * (form.area.value * area_c * form.value_1.value * form.value_2.value / (-form.value_3.value) * getCheckedValue(form.value_4) * getCheckedValue(form.value_5) * getCheckedValue(form.value_6) * getCheckedValue(form.value_7) * getCheckedValue(form.value_8) * getCheckedValue(form.value_9)) + (getCheckedValue(form.krastine) * form.krastai.value); 
  }

  //document.getElementById('final_price').value = Math.round(price) +' Lt';
  document.getElementById('final_price').value = price.toFixed(2) + ' Lt';
}

function getCheckedValue(radioObj) {
  if(!radioObj)
    return 1;
  var radioLength = radioObj.length;
  if(radioLength == undefined)
    if(radioObj.checked)
      return radioObj.value;
    else
      return 1;
  for(var i = 0; i < radioLength; i++) {
    if(radioObj[i].checked) {
      return radioObj[i].value;
    }
  }
  return 1;
}


function NewWindow(mypage, myname, w, h) 
{
  var winl = (screen.width - w) / 2;
  var wint = (screen.height - h) / 2;
  winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars=no ,resizable=no'
  win = window.open(mypage, myname, winprops)
  if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}
/*******************************************************************************
Popup Window openers
*******************************************************************************/

var winReference = null;
// Open a window at a given position on the screen
function openPositionedWindow(url, name, width, height, x, y, status, scrollbars, moreProperties, openerName) {
  
  // ie 4.5 and 5.0 mac - windows are 2 pixels too short; if a statusbar is used, the window will be an additional 15 pixels short
  var agent = navigator.userAgent.toLowerCase();
  if (agent.indexOf("mac") != -1 && agent.indexOf("msie") != -1 && (agent.indexOf("msie 4") != -1 || agent.indexOf("msie 5.0") != -1) ) {
  height += (status) ? 17 : 2;
  }
  // Adjust width if scrollbars are used (pc places scrollbars inside the content area; mac outside) 
  width += (scrollbars != '' && scrollbars != null && agent.indexOf("mac") == -1) ? 16 : 0;
  var properties = 'width=' + width + ',height=' + height + ',screenX=' + x + ',screenY=' + y + ',left=' + x + ',top=' + y + ((status) ? ',status' : '') + ',scrollbars' + ((scrollbars) ? '' : '=no') + ((moreProperties) ? ',' + moreProperties : '');
  var reference = openWindow(url, name, properties, openerName);
  
  return reference;
}

// Open a window at the center of the screen
function openCenteredWindow(url, name, width, height, status, scrollbars, moreProperties, openerName) {
  var x, y = 0;
  if (screen) {
  x = (screen.availWidth - width) / 2;
  y = (screen.availHeight - height) / 2;
  }
  if (!status) status = '';
  if (!openerName) openerName = '';
  var reference = openPositionedWindow(url, name, width, height, x, y, status, scrollbars, moreProperties, openerName);
  return reference;
}

// Open a window at the center of the parent window
function openCenteredOnOpenerWindow(url, name, width, height, status, scrollbars, moreProperties, openerName) {
  var centerX = 0;
  var centerY = 0;
  if (window.screenX != null && window.outerWidth) {
  centerX = window.screenX + (window.outerWidth / 2);
  centerY = window.screenY + (window.outerHeight / 2);
  }
  else if (window.screenLeft) {
  if (document.documentElement) {
  centerX = window.screenLeft + (document.documentElement.offsetWidth / 2);
  centerY = window.screenTop + (document.documentElement.offsetHeight / 2);
  }
  else if (document.body && document.body.offsetWidth) {
  centerX = window.screenLeft + (document.body.offsetWidth / 2);
  centerY = window.screenTop + (document.body.offsetHeight / 2);
  }
  }
  
  if (centerX == 0) {
  openCenteredWindow(url, name, width, height, status, scrollbars, moreProperties, openerName);
  }
  var x = parseInt(centerX - (width / 2));
  var y = parseInt(centerY - (height / 2));
  if (!status) status = '';
  if (!openerName) openerName = '';
  var reference = openPositionedWindow(url, name, width, height, x, y, status, scrollbars, moreProperties, openerName);
  return reference;
}
// Open a full-screen window (different from IE's fullscreen option)
function openMaxedWindow(url, name, scrollbars, openerName) {
  var x, y = 0;
  var width  = 600;
  var height = 800;
  if (screen) {
  if (screen.availLeft) {
  x = screen.availLeft;
  y = screen.availTop;
  }
  width  = screen.availWidth - 6;
  height = screen.availHeight - 29;
  }
  var reference = openPositionedWindow(url, name, width, height, x, y, false, scrollbars, openerName);
  return reference;
}

// Open a full-chrome (all GUI elements) window
// This is like using a target="_blank" in a normal link but allows focussing the window
function openFullChromeWindow(url, name, openerName) {
  return openWindow(url, name, 'directories,location,menubar,resizable,scrollbars,status,toolbar');
}

// Open a sized full-chrome (all GUI elements) window 
function openSizedFullChromeWindow(url, name, width, height, openerName) {
  return openCenteredWindow(url, name, width, height, true, true, 'directories,location,menubar,resizable,toolbar', openerName)
}

// Core utility function that actually creates the window and gives focus to it
function openWindow(url, name, properties, openerName) {
  // ie4.x pc can't give focus to windows containing documents from a different domain
  // in this case, initially load a local interstisial page to allow focussing before loading final url
  var agent = navigator.userAgent.toLowerCase();
  if (agent.indexOf("msie") != -1 && parseInt(navigator.appVersion) == 4 && agent.indexOf("msie 5") == -1 && agent.indexOf("msie5") == -1 && agent.indexOf("win") != -1 && url.indexOf('http://') == 0) {
  winReference = window.open('about:blank', name, properties);
  
  setTimeout('if (winReference && !winReference.closed) winReference.location.replace("' + url + '")', 300);
  }
  else {
  winReference = window.open(url, name, properties);
  }
  // ie doesn't like giving focus immediately (to new window in 4.5 on mac; to existing ones in 5 on pc)
  setTimeout('if (winReference && !winReference.closed) winReference.focus()', 200);
  
  if (openerName) self.name = openerName;
  return winReference;
}

/*******************************************************************************
Modal Dialog controls
*******************************************************************************/
// Close a dialog
// Call from onunload event handler of any page that can create a dialog
function closeDialog(dialog) {
  if (dialog && dialog.closed != true) dialog.close();
}

// Close parent popup
// Call from onload event handler of any page that could be created from a dialog
function closeParentDialog() {
  if (top.opener && isWindowPopup(top.opener)) {
  root = top.opener.top.opener;
  top.opener.close();
  top.opener = root;
  }
}

// Check if a window is a popup
function isWindowPopup(win) {
  return ((win.opener) ? true : false);
}

/*******************************************************************************
  Additional functions
*******************************************************************************/

function openImagePopupID(id, width, height, title){
  var url = 'get.php?i.' + id;
  return openImagePopup(url, width, height, "image_" + id, title, 0);
}

function openFlashPopupID(id, width, height, title){
  var url = 'get.php?i.' + id;
  return openImagePopup(url, width, height, "image_" + id, title, 1);
}

function openImagePopup(url, width, height, extras, flash){
  if (typeof(extras) == 'undefined')
    extras = 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,top=10,right=10,resizable=1';
  if (window.showModalDialog)
    window.showModalDialog(url, window, 'dialogHeight:'+height+'px; dialogWidth:'+width+'px; resizable:yes; status:no; help: no');
  else window.open(url, '', extras + ',width='+width+',height='+height);
}

function openWinInModal(url, width, height, params, title, charset){
  url = "index.php?page=services/window_frame&title=" + escape(title) + "&charset=" + charset + "&url=" + escape(url);
  return openDialog(url, width, height, params, params["scrollbars"], params["resizable"]);
}

function openDialog(url, width, height, param, scroll, resizable){
  if(scroll + "" == "undefined"){ scroll = 0 }
  if(resizable + "" == "undefined"){ resizable = 0 }
  
  var rnd = Math.round((Math.random()*999)+1);
  var r = showModalDialog(url, param, 'dialogWidth:' + width + 'px;dialogHeight:' + height + 'px;center:1;dialogHide:0;help:0;edge:raised;status:0;unadorned:1;resizable:' + resizable + ';scroll:' + scroll);
  
  if (typeof(r) != "undefined")
    return r;
  else 
    return true;
}