var div_height; 

var factor      = 5;
var speed       = 20;
var h_max       = 300;
var blink       = 0;
var blink_speed = 150;
var blink_stop  = false;

function pause(millis)
{  
  var date = new Date();
  var curDate = null;
  do { curDate = new Date(); }while(curDate-date < millis);
} 


function show_div_up(divs)
{
  var div;
  var shadow;
  var pic_up;
  var pic_down;

  pic_up=document.getElementById('pic_up');
  if (pic_up.style.visibility == 'hidden') { return 0; }  // ist bereits am hochfahren, oder hochgefahren?

  
  blink_stop=true;   // blinken unterbrechen

  div = document.getElementById(divs);
  div.style.top ='648px'; 
  if (divs=='div_content_inner_kompetenz')      { h_max = 320; }
  else
  if (divs=='div_content_inner_vita')           { h_max = 250; }
  else
  if (divs=='div_content_inner_kooperation')    { h_max = 200; }

  // Up Bild ausblenden, und damit sicherstellen das nicht nochmal ausgelöst wird
  pic_up.style.visibility='hidden'; 


  pic_down=document.getElementById('pic_down');
  pic_down.style.top=648-h_max+20+'px';

  shadow=document.getElementById(divs+'_head_shadow');
  shadow.style.display='block';

  div_height=0; 
  div_up(div);
  return true;
}

function div_up(div)
{
  if (div_height<=0)
  {
    div.style.height='0px';
    div.style.display='block';
  }
  
  if (div_height>h_max) 
  {  
    div_height=div_height-factor-factor;

    pic=document.getElementById('pic_down');
    pic.style.visibility='visible';
    return 0; 
  }
  div.style.height=div_height+'px';

  div_top=div.style.top;
  div_top=div_top.substr(0,div_top.length-2);
 
  div.style.top=div_top-factor+'px';
  
  div_height=div_height+factor;
   
//  function(){myFunction(parameter)}
  //setTimeout("div_up(div);", speed);
  setTimeout(function(){div_up(div);}, speed);
  return true;
}

function show_div_down(divs)
{
  if (div_height+5!==h_max) { blink_stop=false; return 0;  }
  pic=document.getElementById('pic_down');
  pic.style.visibility='hidden';

  var shadow;
  shadow=document.getElementById(divs+'_head_shadow');
  if (shadow!=='') { shadow.style.display='none'; }

  div=document.getElementById(divs);
  div_down(div);
  return true;
}


function div_down(div)
{
/*
  if (div_height==0)
  {
    div.style.height='0px';
    div.style.display='none';
  };

  if (div_height<=0)
  {
    pic=document.getElementById('pic_up');
    pic.style.visibility='visible';
    return 0;
  };
  */
  if (div_height<50)
  {
    pic=document.getElementById('pic_up');
    pic.style.visibility='visible';
    blink_stop=false; 
    setTimeout("animate_pic_up()",1000);
    return 0;
  }

  div_top=div.style.top;
  div_top=div_top.substr(0,div_top.length-2);
  div.style.top=eval(div_top)+factor+'px';

  div.style.height=div_height+'px';
  div_height=div_height-factor;
 
  setTimeout("div_down(div);", speed); 
  return true;
}










function do_nothing()
{
  return true;
}


//-------------------------------------------------
var title_fade_last_time=0;
var title_fade_div_id=0;
var title_fade_duration=3000;
var title_fade_counter=0;//Math.floor((Math.random()*3));
//alert(title_fade_counter);

//----------------------------------------------
function js_title_fade_animate()
{  
  var title_fade_div=document.getElementById('div_content_inner_home');

  //aktuelle Zeit
  var current_time=new Date().getTime();
  //Zeitdifferenz seit letztem Aufruf
  var passed_time=current_time-title_fade_last_time;

  //Zeit abgelaufen?
  if(title_fade_div.FadeTimeLeft<=passed_time)
  {      
    //ja
    title_fade_div.FadeState=(title_fade_div.FadeState==1)?2:-2;
    
    //volle Transparenz erreicht?
    if(title_fade_div.FadeState==-2)
    {
      //ja: wechsle Titel aus
      title_fade_counter++;if(title_fade_counter>2){title_fade_counter=0;}
      switch(title_fade_counter)
      {
        case  1:s="<BR><FONT CLASS='home_title'>Wer mehr als die Hälfte seines Einkommens an das Finanzamt abführen muss,<BR>ist mehr darauf bedacht, Steuern zu sparen, als darauf, Geld zu verdienen.</FONT><BR><BR><FONT CLASS='home_title_small'>(Hans-Karl Schneider, Volkswirt, Hochschullehrer, geb. 1920)</FONT>";break;
        case  2:s="<BR><FONT CLASS='home_title'>Am schwersten auf der Welt zu verstehen ist die Einkommensteuer.</FONT><BR><BR><FONT CLASS='home_title_small'>(Albert Einstein, deutscher Physiker und Nobelpreisträger, 1879-1955)</FONT>";break;
        default:s="<BR><FONT CLASS='home_title'>Wer die Pflicht hat, Steuern zu zahlen, hat das Recht, Steuern zu sparen!</FONT><BR><BR><FONT CLASS='home_title_small'>(BGH-Urteil von 1965)</FONT>";break;
      }
      title_fade_div.innerHTML=s;
    }
    //reinitialisiere Prozess
   
    if (title_fade_counter==1)
    { 
     if (title_fade_div.FadeState==2) { setTimeout(function(){js_title_fade_start("div_content_inner_home");}, 3500); }
                                 else { js_title_fade_start("div_content_inner_home"); }
    }
    else
    {
      js_title_fade_start("div_content_inner_home");
    }

//    js_title_fade_start("div_content_inner_home");
    return;
  }

  //permanenter Aufruf
  title_fade_div.FadeTimeLeft=title_fade_div.FadeTimeLeft-passed_time;
  var opacity_value=title_fade_div.FadeTimeLeft/title_fade_duration;
  if(title_fade_div.FadeState==1){opacity_value=1-opacity_value;}

  title_fade_div.style.opacity=opacity_value;
  title_fade_div.style.filter="alpha(opacity="+(opacity_value*100)+")";

  title_fade_last_time=current_time;
  window.setTimeout("js_title_fade_animate()",33);
}

//----------------------------------------------
function js_title_fade_start(div_id)
{
  title_fade_div_id=div_id;
  var title_fade_div=document.getElementById('div_content_inner_home');if(title_fade_div===null){return;}
 
  var fade_state=title_fade_div.FadeState;
  if(fade_state==1 || fade_state==-1)
  {
    //Transparenz-Zwischenstufe
    title_fade_div.FadeState=(fade_state==1)?-1:1;
    title_fade_div.FadeTimeLeft=title_fade_duration-title_fade_div.FadeTimeLeft;
  }
  else
  {
    //volle Transparenz oder volle Sichtbarkeit
    title_fade_div.FadeState=(fade_state==2)?-1:1;
    title_fade_div.FadeTimeLeft=title_fade_duration;
    title_fade_last_time=new Date().getTime();
    window.setTimeout("js_title_fade_animate()",33);
  }  
}

/*
function animate_pic(pics)
{ 
  if (blink==10) { pic.style.visibility='visible'; return; }
  
  pic=document.getElementById('pic_up');
  if (pic.style.visibility=='' || pic.style.visibility=='visible') { pic.style.visibility='hidden'; }
                                                              else { pic.style.visibility='visible' };
  blink++;
  setTimeout("animate_pic()",blink_speed);
}
*/


function animate_pic_up()
{ 
  var pic;
  var pic_top;
  
  pic=document.getElementById('pic_up');

  if (blink>=8) 
  { 
    blink=0;
    setTimeout("animate_pic_up()",1000);
    return true;
  }

  if (blink_stop===true) 
  { 
    pic.style.top='625px'; 
    return true; 
  }
  
  
  pic_top=pic.style.top; 
  if (pic_top==='') { pic.style.top='625px'; }
  pic_top=pic.style.top;  
  pic_top=pic_top.substr(0,pic_top.length-2);
  
  if (pic_top!=='625') { pic_top=625; }
                else  { pic_top=pic_top-10; }

  pic.style.top=pic_top+'px';
  
  blink++;
  setTimeout("animate_pic_up()",blink_speed);
  return true;
}


function show_div(divs)
{
  div = document.getElementById(divs);
  
  if (div.style.height==='' || div.style.height=='50px') { show_div_up(divs) }
                                                    else { show_div_down(divs) }
}