var OKCommon_ShowProcessing_ajaxWaitMessageTimer;
var OKCommon_ShowProcessing_ajaxWait_Timeout = 500;
var requestStatus = 0; //0: not running, 1:running, 2:completed
var isVisible = false;


function showProcessing()
{
 osjs(function($) {

  if(osjs.browser.msie && osjs.browser.version == '6.0')
  {
   var wd = document.body.offsetWidth > document.documentElement.clientWidth ? document.body.offsetWidth : document.documentElement.clientWidth; 
   var hd = document.body.offsetHeight > document.documentElement.clientHeight ? document.body.offsetHeight: document.documentElement.clientHeight;
   document.getElementById('divIndicatorBackground').style.width = wd;
   document.getElementById('divIndicatorBackground').style.height = hd;
   document.getElementById('divIndicatorBackground').style.display = 'block';
   osjs("select")["hide"]();
  }

  else
  {

   document.getElementById('divIndicatorBackground').style.width = '100%';
   document.getElementById('divIndicatorBackground').style.height = '100%';
   document.getElementById('divIndicatorBackground').style.display = 'block';
  }
 });
}


function showLoading()
{
 if (isVisible && requestStatus==2)
 {
  document.getElementById('divIndicatorBackground').style.display = 'none';
  
  if(osjs.browser.msie && osjs.browser.version == '6.0')
   osjs("select")["show"]();
  
  isVisible = false;
  requestStatus = 0;
  clearTimeout(OKCommon_ShowProcessing_ajaxWaitMessageTimer);
 }

 if (requestStatus == 1 && !isVisible)
 {
  if(osjs.browser.msie && osjs.browser.version == '6.0')
  {
   var wd = document.body.offsetWidth > document.documentElement.clientWidth ? document.body.offsetWidth : document.documentElement.clientWidth; 
   var hd = document.body.offsetHeight > document.documentElement.clientHeight ? document.body.offsetHeight: document.documentElement.clientHeight;
   document.getElementById('divIndicatorBackground').style.width = wd;
   document.getElementById('divIndicatorBackground').style.height = hd;
   document.getElementById('divIndicatorBackground').style.display = 'block';
   osjs("select")["hide"]();
  }
 
  else
  {
   document.getElementById('divIndicatorBackground').style.width = '100%';
   document.getElementById('divIndicatorBackground').style.height = '100%';
   document.getElementById('divIndicatorBackground').style.display = 'block';
  }

  isVisible = true;
  OKCommon_ShowProcessing_ajaxWaitMessageTimer = setTimeout(showLoading, OKCommon_ShowProcessing_ajaxWait_Timeout);
 }
}


function OKCommon_ShowProcessing_ajaxWait_init()
{
 osjs(function($) {

  osAjaxBackend.BindBeforeAjaxRequest(function(){
   requestStatus = 1;
   OKCommon_ShowProcessing_ajaxWaitMessageTimer = setTimeout(showLoading, OKCommon_ShowProcessing_ajaxWait_Timeout);
  });

  osAjaxBackend.BindAfterAjaxRequest(function(){
   requestStatus = 2;
   OKCommon_ShowProcessing_ajaxWaitMessageTimer = setTimeout(showLoading, OKCommon_ShowProcessing_ajaxWait_Timeout);
  });

 });
}