var chk =  document.getElementsByTagName("html")[0].clientHeight;
function issetV( variable ) { return( typeof( variable ) != 'undefined' ); }
function issetO( id ) { if (document.getElementById(id)) return( true ); return( false ); }
function check() {  firstcall = 1; }
window.document.body.onload = function(){ check; }
window.onresize = function(){ check(); }

if (document.getElementById("clinks"))
{
 var gesamthoehe;
 var contenthoehe;
 var cminheight = 500;
/* (MINDEST-)HÖHE DES CONTENTS FÜR ALLE BEREICHE START */
 var c = document.getElementById("content").getBoundingClientRect();
 var l = document.getElementById("clinks").getBoundingClientRect();
 var r = document.getElementById("crechts").getBoundingClientRect();
//alert("links: "+(l.bottom-l.top)+", rechts: "+(r.bottom-r.top)+", content: "+(c.bottom-c.top));
 if ( (l.bottom-l.top) >  (r.bottom-r.top) ) contenthoehe = (l.bottom-l.top);
                                        else contenthoehe = (r.bottom-r.top);
 if ( contenthoehe < (c.bottom-c.bottom) ) contenthoehe = (c.bottom-c.top);
 if (contenthoehe<cminheight) contenthoehe = cminheight;
 contenthoehe = parseInt(contenthoehe);
 document.getElementById("content").style.height = contenthoehe+"px";
 document.getElementById("clinks").style.height = contenthoehe+"px";
 document.getElementById("crechts").style.height = contenthoehe+"px";
/* (MINDEST-)HÖHE DES CONTENTS FÜR ALLE BEREICHE ENDE */

 var k = document.getElementById("kopf").getBoundingClientRect();
 var f = document.getElementById("fuss").getBoundingClientRect();
 gesamthoehe = parseInt( (k.bottom-k.top)+contenthoehe+20 );
 document.getElementById("seite").style.height = gesamthoehe+"px";
 document.getElementsByTagName("body")[0].style.height = (gesamthoehe+30)+"px";

//alert(s.bottom-s.top);
}

if (document.getElementById("overlay"))
{
 var hw = getSize();
 var v = document.getElementsByTagName("html")[0].scrollHeight;
// alert(v);
 document.getElementById("overlay").style.height = v+"px";
}

/****************************************************/
function getSize()
{
 var myWidth = 0, myHeight = 0;
 if( typeof( window.innerWidth ) == 'number' )
 {
  myWidth = window.innerWidth;        //Non-IE
  myHeight = window.innerHeight;
 } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
  myWidth = document.documentElement.clientWidth;        //IE 6+ in 'standards compliant mode'
  myHeight = document.documentElement.clientHeight;
 } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
  myWidth = document.body.clientWidth;        //IE 4 compatible
  myHeight = document.body.clientHeight;
 }
// return [ myWidth, myHeight ];
}

/****************************************************/
function getScrollXY()
{
 var scrOfX = 0, scrOfY = 0;
 if( typeof( window.pageYOffset ) == 'number' )
 {
  scrOfY = window.pageYOffset;  //Netscape compliant
  scrOfX = window.pageXOffset;
 } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
  scrOfY = document.body.scrollTop;  //DOM compliant
  scrOfX = document.body.scrollLeft;
 } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
  scrOfY = document.documentElement.scrollTop;  //IE6 standards compliant mode
  scrOfX = document.documentElement.scrollLeft;
 }
 return [ scrOfX, scrOfY ];
}

/****************************************************/
function bild_show(name)
{
 document.getElementById("overlay").style.display="inline";
 document.getElementById("innerlay").innerHTML = '';
}

/****************************************************/
function bild_hide()
{
 document.getElementById("overlay").style.display="none";
 document.getElementById("innerlay").innerHTML = "";
}