/*
* Common JS scripts
*/

function gEBI( objId ){
  return document.getElementById( objId );
}

function createCookie( sName, sValue, iDays ){
  sValue = escape( sValue );
  if( iDays ){
    var oDate = new Date();
    oDate.setTime( oDate.getTime() + ( iDays*24*60*60*1000 ) );
    var sExpires = "; expires="+oDate.toGMTString();
  }
  else
    var sExpires = "";
  document.cookie = sName+"="+sValue+sExpires+"; path=/";
}

function throwCookie( sName ){
  var sNameEQ = sName + "=";
  var aCookies = document.cookie.split( ';' );
  for( var i=0; i < aCookies.length; i++ ){
    var c = aCookies[i];
    while( c.charAt(0) == ' ' )
      c = c.substring( 1, c.length );
    if( c.indexOf( sNameEQ ) == 0 )
      return c.substring( sNameEQ.length, c.length );
  }
  return null;
}

function delCookie( sName ){
  createCookie( sName, "", -1 );
}

function isset( sVar ){
  return( typeof( window[sVar] ) != 'undefined' );
}

_bUa=navigator.userAgent.toLowerCase();
_bOp=(_bUa.indexOf("opera")!=-1?true:false);
_bIe=(_bUa.indexOf("msie")!=-1&&!_bOp?true:false);
_bIe4=(_bIe&&(_bUa.indexOf("msie 2.")!=-1||_bUa.indexOf("msie 3.")!=-1||_bUa.indexOf("msie 4.")!=-1)&&!_bOp?true:false)
isIe=function(){return _bIe;}
isOldIe=function(){return _bIe4;}
var olArray=[];

function AddOnload( f ){
  if( isIe && isOldIe ){
    window.onload = ReadOnload;
    olArray[olArray.length] = f;
  }
  else if( window.onload ){
    if( window.onload != ReadOnload ){
      olArray[0] = window.onload;
      window.onload = ReadOnload;
    }
    olArray[olArray.length] = f;
  }
  else
    window.onload=f;
}
function ReadOnload(){
  for( var i=0; i < olArray.length; i++ ){
    olArray[i]();
  }
}

function txtSize( iSize ){
  var aSizes = Array( '0.8em', '', '1.333em' );
  var aChange = Array( 'pageDescription', 'h5' );
  var aSizesDefault = Array( '1em', '1em' );
  for( var i = 0; i < aChange.length; i++ ){
    if( !aSizes[iSize] )
      iSize = 1;
    if( gEBI( aChange[i] ) ){
      gEBI( aChange[i] ).style.fontSize = ( iSize != 1 ) ? aSizes[iSize] : aSizesDefault[i];
    }
    else if( gEBI( 'content' ).getElementsByTagName( aChange[i] ) ){
      aH5 = gEBI( 'content' ).getElementsByTagName( aChange[i] );
      for( var j = 0; j < aH5.length; j++ ){
        aH5[j].style.fontSize =  ( iSize != 1 ) ? aSizes[iSize] : aSizesDefault[i];
      }
    }
  }
}

var aBoxBannersCache = Array( );
function boxLoadCacheBanner( iType ){
  aBoxBannersCache[iType] = Array( );
  for( i = 0; i < aBoxBanners[iType].length; i++ ){
    aBoxBannersCache[iType][i] = new Image();
    aBoxBannersCache[iType].src = aBoxBanners[iType][i][0];
  } // end for
} // end function

function boxChangeBanner( iType ){
  iBoxShowId = boxThrowNext( iType );
  var sBoxFile = aBoxBanners[iType][iBoxShowId][0];
  var sBoxExt = boxThrowExt( sBoxFile )
  gEBI( 'bannerImg'+iType ).src =   'files/'+sBoxFile;
  iBoxTimeOutId[iType] = setTimeout( "boxChangeBanner( "+iType+" )", 6000 );
} // end function 

function boxThrowNext( iType ){
  if( iBoxId[iType] == aBoxBanners[iType].length - 1 )
    iBoxId[iType] = 0;
  else
    iBoxId[iType] = iBoxId[iType] + 1;
  return iBoxId[iType];
} // end function 

function boxThrowExt( sFile ){
  var aFileExt    = sFile.split( "." );
  return aFileExt[aFileExt.length - 1];
} // end function