function alertWidth() {
  var myWidth = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
  } else if( document.documentElement && document.documentElement.clientWidth) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
  } else if( document.body && document.body.clientWidth) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
  }
  return myWidth;
}

/*
Cross browser Marquee script- © Dynamic Drive (www.dynamicdrive.com)
For full source code, 100's more DHTML scripts, and Terms Of Use, visit http://www.dynamicdrive.com
Credit MUST stay intact
*/

//Specify the marquee's width (in pixels)
//var marqueewidth = ((alertWidth()/100)*75)+'px'
var marqueewidth = (alertWidth()-160)+'px'
//Specify the marquee's height
var marqueeheight="150px"
//Specify the marquee's marquee speed (larger is faster 1-10)
var marqueespeed=3
//configure background color:
var marqueebgcolor=""
//Pause marquee onMousever (0=no. 1=yes)?
var pauseit=1

//Specify the marquee's content (don't delete <nobr> tag)
//Keep all content on ONE line, and backslash any single quotations (ie: that\'s great):

var marqueecontent = /*{marqueecontent}*/
'<img src="images/slideshow/Logo GV Olympia jpg.jpg">'+
'<img src="images/slideshow/Turnen10.jpg">'+
'<img src="images/slideshow/Turnen12.jpg">'+
'<img src="images/slideshow/Turnen15.jpg">'+
'<img src="images/slideshow/Turnen2.jpg">'+
'<img src="images/slideshow/Turnen20.jpg">'+
'<img src="images/slideshow/Turnen22.jpg">'+
'<img src="images/slideshow/Turnen28.jpg">'+
'<img src="images/slideshow/Turnen3.jpg">'+
'<img src="images/slideshow/Turnen33.jpg">'+
'<img src="images/slideshow/Turnen38.jpg">'+
'<img src="images/slideshow/Turnen4.jpg">'+
'<img src="images/slideshow/Turnen49.jpg">'+
'<img src="images/slideshow/Turnen5.jpg">'+
'<img src="images/slideshow/Turnen6.jpg">'+
'<img src="images/slideshow/Turnen7.jpg">'+
'<img src="images/slideshow/Turnen9.jpg">'+
'<img src="images/slideshow/olympia rtt nieuw 2011.jpg">'+
''
/*{marqueecontentEND}*/


////NO NEED TO EDIT BELOW THIS LINE////////////
marqueespeed=(document.all)? marqueespeed : Math.max(1, marqueespeed-1) //slow speed down by 1 for NS
var copyspeed=marqueespeed
var pausespeed=(pauseit==0)? copyspeed: 0
var iedom=document.all||document.getElementById
if (iedom)
document.write('<span id="temp" style="visibility:hidden;position:absolute;z-index:1;top:-100px;left:-9000px">'+marqueecontent+'</span>')
var actualwidth=''
var cross_marquee, ns_marquee

function populate(){
if (iedom){
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
cross_marquee.style.left=parseInt(marqueewidth)+8+"px"
cross_marquee.innerHTML=marqueecontent
actualwidth=document.all? temp.offsetWidth : document.getElementById("temp").offsetWidth
}
else if (document.layers){
ns_marquee=document.ns_marquee.document.ns_marquee2
ns_marquee.left=parseInt(marqueewidth)+8
ns_marquee.document.write(marqueecontent)
ns_marquee.document.close()
actualwidth=ns_marquee.document.width
}
lefttime=setInterval("scrollmarquee()",20)
}
window.onload=populate

function scrollmarquee(){
if (iedom){
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed+"px"
else
cross_marquee.style.left=parseInt(marqueewidth)+8+"px"

}
else if (document.layers){
if (ns_marquee.left>(actualwidth*(-1)+8))
ns_marquee.left-=copyspeed
else
ns_marquee.left=parseInt(marqueewidth)+8
}
}

if (iedom||document.layers){
with (document){
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
if (iedom){
write('<div style="position:relative;z-index:1;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
write('<div style="position:absolute;z-index:1;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
write('<div id="iemarquee" style="position:absolute;z-index:10;left:0px;top:0px"></div>')
write('</div></div>')
}
else if (document.layers){
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
write('</ilayer>')
}
document.write('</td></table>')
}
}



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