/* common ajax */
function getXmlHttpObject() {
  var xmlHttp=null;
  try {
    xmlHttp=new XMLHttpRequest();
  } catch( e ) {
    try {
      xmlHttp=new ActiveXObject( "Msxml2.XMLHTTP" );
    } catch( e ) {
      xmlHttp=new ActiveXObject( "Microsoft.XMLHTTP" );
    }
  }
  return xmlHttp;
}


/* forms */
function formemail( type ) {
  var x=new getobj( "header-email" );
  if( x ) {
    if( type=="focus" ) {
      if( x.obj.value=="Your email address" ) {
        x.obj.value="";
      }
    }
    if( type=="blur" ) {
      if( x.obj.value=="" ) {
        x.obj.value="Your email address";
      }
    }
  }
}

function formsearch( type ) {
  var x=new getobj( "right-search" );
  if( x ) {
    if( type=="focus" ) {
      if( x.obj.value=="Search here..." ) {
        x.obj.value="";
      }
    }
    if( type=="blur" ) {
      if( x.obj.value=="" ) {
        x.obj.value="Search here...";
      }
    }
  }
}

function formnav( element,baseurl ) {
  var x=new getobj( element );
  if( x ) {
    window.location.href=urldecode( baseurl )+"/pp"+x.obj.value;
  }
}


/* check username */
function checkusername() {
  xmlHttp=getXmlHttpObject();
  if( xmlHttp==null ) { return; }
  var DHTML=( document.getElementById || document.all );
  if( DHTML ) {
    xmlHttp.onreadystatechange=function() { checkusernamedone(); };
    var name=new getobj( 'desired' );
    var url="/ajax/checkname.php?name="+name.obj.value+"&t="+Math.random();
    xmlHttp.open( "GET",url,true );
    xmlHttp.send( null );
  }
}

function checkusernamedone() {
  if( xmlHttp.readyState==4 ) {
    var DHTML=( document.getElementById || document.all );
    if( DHTML ) {
      var response=xmlHttp.responseText;
      var x1=new getobj( 'status' );
      x1.obj.innerHTML=xmlHttp.responseText;
    }
  }
}


/* player */

function playerdetail( mode ) {
  var a=new getobj( "main-left-info" );
  var b=new getobj( "main-left-comments" );
  var c=new getobj( "main-left-post" );
  var d=new getobj( "main-left-info-changer1" );
  var e=new getobj( "main-left-info-changer2" );
  var f=new getobj( "main-left-info-post1" );
  var g=new getobj( "main-left-info-post2" );
  if( mode=="comments" ) {
    a.style.display="none";
    b.style.display="block";
    c.style.display="none";
    d.style.display="none";
    e.style.display="block";
    f.style.display="block";
    g.style.display="none";
  }
  if( mode=="description" ) {
    a.style.display="block";
    b.style.display="none";
    c.style.display="none";
    d.style.display="block";
    e.style.display="none";
    f.style.display="block";
    g.style.display="none";
  }
  if( mode=="post" ) {
    a.style.display="none";
    b.style.display="none";
    c.style.display="block";
    d.style.display="none";
    e.style.display="block";
    f.style.display="none";
    g.style.display="block";
  }
}

function postcommentlimit() {
  var limit=500;
  var x1=new getobj( 'commenttext' );
  var x2=new getobj( 'commentlimit' );
  var remaining=limit-x1.obj.value.length;
  if( remaining<0 ) { remaining=0; }
  var html1='Enter your comment below ('+remaining+' characters remaining):';
  x2.obj.innerHTML=html1;
  if( x1.obj.value.length>limit ) {
    x1.obj.value=x1.obj.value.substring( 0,limit );
  }
}

function postcomment( user,confirm,episode ) {
  xmlHttp=getXmlHttpObject();
  if( xmlHttp==null ) { return; }
  var DHTML=( document.getElementById || document.all );
  if( DHTML ) {
    xmlHttp.onreadystatechange=function() { postcommentdone(); };
    var comment=new getobj( 'commenttext' );
    var url="/ajax/comment-post.php?u="+user+"&cc="+confirm+"&e="+episode+"&c="+urlencode( comment.obj.value )+"&t="+Math.random();
    var x1=new getobj( 'commentbutton' );
    var x2=new getobj( 'commenttext' );
    x1.obj.disabled=true;
    x2.obj.disabled=true;
    xmlHttp.open( "GET",url,true );
    xmlHttp.send( null );
  }
}

function postcommentdone() {
  if( xmlHttp.readyState==4 ) {
    var DHTML=( document.getElementById || document.all );
    if( DHTML ) {
      var response=xmlHttp.responseText;
      var x1=new getobj( 'commentlimit' );
      var x2=new getobj( 'commentbutton' );
      var x3=new getobj( 'commenttext' );
      if( response=="ok" ) {
        x1.obj.innerHTML='<span style="color: #C60000;">Comment posted!</span>';
        x2.style.visibility='hidden';
      } else {
        x2.obj.innerHTML='<p><span style="color: #C63333;">'+response+'</span></p>';
        x2.obj.disabled=false;
        x3.obj.disabled=false;
      }
    }
  }
}

//var bannerimg=new Image( 640,300 );
//var bannerattribs=new Array( 2 );
var bannertimer;
var bannerimg=new Image( 310,322 );
bannerimg.onload=function() {
  bannerfade( "out",100 );
}

function banner( index ) {
  xmlHttp=getXmlHttpObject();
  if( xmlHttp==null ) { return; }
  var DHTML=( document.getElementById || document.all );
  if( DHTML ) {
    xmlHttp.onreadystatechange=function() { bannerdone(); };
    var url="/ajax/getbanner4.php?index="+index+"&t="+Math.random();
    xmlHttp.open( "GET",url,true );
    xmlHttp.send( null );
  }
}

function bannerdone() {
  if( xmlHttp.readyState==4 ) {
    var DHTML=( document.getElementById || document.all );
    if( DHTML ) {
      var response=xmlHttp.responseText;
      var parts=response.split( "&&&" );
      var banner=parts[0].substr( parts[0].indexOf( '=' )+1 );
      var index=parts[1].substr( parts[1].indexOf( '=' )+1 );
      //bannerattribs[0]=parts[2].substr( parts[2].indexOf( '=' )+1 );
      //bannerattribs[1]=parts[3].substr( parts[3].indexOf( '=' )+1 );
      bannerimg.src="/images/banners4/"+banner;
      bannertimer=setTimeout( "banner( "+index+" )",10000 );
    }
  }
}

function bannerfade( fade,opacity ) { 
  var DHTML=( document.getElementById || document.all );
  if( DHTML ) {
    var speed=10;
    var holder=new getobj( "bannerholder" );
    //var link=new getobj( "bannerlink" );
    if( fade=="out" ) {
      holder.style.opacity=( opacity/100 ); 
      holder.style.filter="alpha( opacity="+opacity+" )";
      opacity-=5;
      if( opacity!=0 ) {
        setTimeout( "bannerfade( \"out\","+opacity+" )",speed ); 
      } else if( opacity==0 ) {
        holder.obj.src=bannerimg.src;
        //holder.obj.alt=bannerattribs[1];
        //holder.obj.title=bannerattribs[1];
        //link.obj.href=bannerattribs[0];
        setTimeout( "bannerfade( \"in\",0 )",speed ); 
      }
    } else { 
      holder.style.opacity=( opacity/100 ); 
      holder.style.filter="alpha( opacity="+opacity+" )";
      opacity+=5;
      if( opacity!=100 ) {
        setTimeout( "bannerfade( \"in\","+opacity+" )",speed ); 
      }
    }
  }
} 

function episodeblock( mode,index ) {
  var DHTML=( document.getElementById || document.all );
  if( DHTML ) {
    var overlay=new getobj( "epoverlay-"+index );
    var text=new getobj( "eptext-"+index );
    if( mode==1 ) {
      overlay.style.display="block";
      text.style.display="block";
    }
    if( mode==0 ) {
      overlay.style.display="none";
      text.style.display="none";
    }
  }
}

function categoryblock( mode,index ) {
  var DHTML=( document.getElementById || document.all );
  if( DHTML ) {
    var overlay=new getobj( "catoverlay-"+index );
    var text=new getobj( "cattext-"+index );
    if( mode==1 ) {
      overlay.style.display="block";
      text.style.display="block";
    }
    if( mode==0 ) {
      overlay.style.display="none";
      text.style.display="none";
    }
  }
}