function switchErr(action){
	//window.alert('startin now ..');
	// SETUP
	var errBoxWidth = 420;
	var errBoxHeight = 220;
	// GET WINDOW SIZE
	var winW = 0;
	var winH = 0;
  if( typeof( window.innerHeight ) == 'number' ) {
    //Non-IE
    winW = window.innerWidth;
    winH = window.innerHeight;
  } else if( document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight) ) {
    //IE 6+ in 'standards compliant mode'
    winW = document.documentElement.clientWidth;
    winH = document.documentElement.clientHeight;
  } else if( document.body && (document.body.clientWidth || document.body.clientHeight) ) {
    //IE 4 compatible
    winW = document.body.clientWidth;
    winH = document.body.clientHeight;
  }
  winW++;
  winH++;
  //window.alert(winW);
	//window.alert(winH);
	var boxMarginTop = Math.ceil((winH - errBoxHeight) / 2);
	//window.alert(boxMarginTop);
	var boxMarginLeft = Math.ceil((winW - errBoxWidth) / 2);
	//window.alert(boxMarginLeft);
  // all <SELECT> collection
  if(document.all)
  { 
    allSelects = document.all.tags("select");
  }
  else if (document.getElementsByTagName)
  { 
    allSelects = document.getElementsByTagName("select");
  }
  // ACTIONS
	switch(action){
	  case 'show':
      // hide all <SELECT>
      for(x=0; x < allSelects.length; x++)
      {
        allSelects[x].style.visibility = "hidden";
      }
	    document.getElementById('web_all').style.height = winH + 'px';
			document.getElementById('web_all').style.position = 'absolute';
			document.getElementById('web_all').style.top = '0';
			document.getElementById('web_all').style.left = '0';
			document.getElementById('web_all').style.overflow = 'hidden';
			document.getElementById('web_cover').style.height = winH + 'px';
			document.getElementById('err_box').style.display = 'block';
			document.getElementById('err_box').style.top = boxMarginTop+'px';
			document.getElementById('err_box').style.left = boxMarginLeft+'px';
	  return;
	  case 'hide':
      // unhide all <SELECT>
      for(x=0; x < allSelects.length; x++)
      {
        allSelects[x].style.visibility = "visible";
      }
	    //window.alert("Hidin' ..");
			document.getElementById('web_all').style.height = 'auto';
			document.getElementById('web_all').style.position = 'static';
			//document.getElementById('all').style.top = '0';
			//document.getElementById('all').style.left = '0';
			//document.getElementById('all').style.overflow = 'hidden';
			document.getElementById('web_cover').style.display = 'none';
			document.getElementById('err_box').style.display = 'none';
			document.getElementById('web_box').style.height = 'auto';
			//document.getElementById('err_box').style.display = 'block';
			//document.getElementById('err_box').style.top = boxMarginTop+'px';
			//document.getElementById('err_box').style.left = boxMarginLeft+'px';
			//document.getElementById('err_box').style. = '';
			//document.getElementById('err_box').style. = '';
			//document.getElementById('err_box').style. = '';
			//window.alert(winH);
			//document.getElementById('center').style.height = '600px';
			//document.getElementById('center').style.overflow = 'hidden';
	  return
	}

}