function swapBanners()
{
	var leaderBoardSource = document.getElementById("leaderboard_home");
	var leaderBoardTarget = document.getElementById("leaderboard_target");
	
	if ( leaderBoardSource && leaderBoardTarget )
	{
		var html = leaderBoardSource.innerHTML;
		leaderBoardSource.innerHTML = "";
		
		leaderBoardTarget.innerHTML = html;		
	}
	
	var rectangleSource = document.getElementById("rectangle_home");
	var rectangleTarget = document.getElementById("rectangle_target");
	
	
	if ( rectangleSource && rectangleTarget )
	{
		var html = rectangleSource.innerHTML;
		rectangleSource.innerHTML = "";
		
		rectangleTarget.innerHTML = html;		
	}
	
}



/* 
 om meerdere functies aan de onload toe te wijzen
*/

function addLoadEvent(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function')
	{
		window.onload = func;
	} else {
		window.onload = function()
		{
			if (oldonload)
			{
				oldonload();
			}
			func();
		};
	}
}

/*
  friso's naar flash communicatie middel dingetje (external interface)
*/

function thisMovie(movieName) {
	if (navigator.appName.indexOf("Microsoft") != -1) {
		return window[movieName]
	}
	else {
		return document[movieName]
	}
}

function load_mp3(liedje, site_id, linkid) {
	stoppenofspelen = change_bg(linkid);
	
	if(stoppenofspelen == false) {
		thisMovie("flashnav").stop_mp3();
	} else {
		thisMovie("flashnav").load_mp3(liedje, site_id)
	}
}

/// stop_plaatje plaatsen

vorigelinkid="";
function change_bg(linkid) {
	if(vorigelinkid == "") {
		vorigelinkid = linkid;
	}
	
	if(linkid != vorigelinkid) {
		vorigelinkid.style.backgroundImage = "url(../../static/images/headphone.png)";
		
		vorigelinkid = linkid;
	}
	
	if(linkid.style.backgroundImage == "url(../../static/images/stop_btn.png)") {
		linkid.style.backgroundImage = "url(../../static/images/headphone.png)";
		return false;
	} else {
		linkid.style.backgroundImage = "url(../../static/images/stop_btn.png)";
		return true;
	}
}

// popup windowtje

/*
function popup(url_add, wtitle, w, h) {
	if(wtitle == undefined) { wtitle = "Q-music Live"; }
	
	if(screen.width){
		var winl = (screen.width-w)/2;
		var wint = (screen.height-h)/2;
		alert(winl);
		alert(wint);
	} else {
		winl = 0;
		wint = 0;
	}
	if (winl < 0) winl = 0;
	if (wint < 0) wint = 0;
	
	window.open(url_add, wtitle, 'top=' + wint + ',left=' + winl + ',width=' + w + ',height=' + h + ',menubar=no,status=no,location=no,toolbar=no,scrollbars=no');
}
*/


function popup(url, pagename, w, h) {
 var width = w;
 var height = h;
 var left = (screen.width - width)/2;
 var top = (screen.height - height)/2;
 var params = 'width='+width+', height='+height;
 params += ', top='+top+', left='+left;
 params += ', directories=no';
 params += ', location=no';
 params += ', menubar=no';
 params += ', resizable=no';
 params += ', scrollbars=no';
 params += ', status=no';
 params += ', toolbar=no';
 newwin=window.open(url,'Liveplayer',params);
 if (window.focus) {newwin.focus()}
}