function changeTab(id,holderId,tab){
	if(holderId==undefined){
		holderId='details';
	}
	if(tab==undefined){
		tab='tab';
	}
	var holder=document.getElementById(holderId);
	document.getElementById(tab+'-'+holder.tabId).className='tab';
	document.getElementById(tab+'_'+holder.tabId).style.display='none';
	holder.tabId=id;
	document.getElementById(tab+'-'+holder.tabId).className='tab current';
	document.getElementById(tab+'_'+holder.tabId).style.display='block';
}
function showPrecondition(txt){
	document.getElementById('precondition').className="popup zoom on";
	document.getElementById('mask').className='on';
	document.getElementById('precondition_txt').innerHTML=unescape(txt);
}
function beginTopseller(max){
	var topsellers = document.getElementById('topsellers');
	topsellers.actId=1;
	topsellers.max=max;
	/*topsellers.interval=window.setInterval("changeAutoTopseller()",20000);*/
} 
function changeAutoTopseller(){
	var topsellers = document.getElementById('topsellers');
	if(parseInt(topsellers.actId)+1>topsellers.max){
		changeTopseller(1);
	}else{
		changeTopseller(parseInt(topsellers.actId)+1);
	}
}
function changeTopseller(topsellerId){
	var topsellers = document.getElementById('topsellers');
	if(topsellers.actId!=topsellerId){
		var topseller = document.getElementById('topseller'+topsellers.actId);
		var topsellerButton = document.getElementById('topsellerButton'+topsellers.actId);
		topseller.style.display='none';
		topsellerButton.className='topsellerButton passiv';
		
		topsellers.actId=topsellerId;
		topseller = document.getElementById('topseller'+topsellers.actId);
		topsellerButton = document.getElementById('topsellerButton'+topsellers.actId);
		topseller.style.display='block';
		topsellerButton.className='topsellerButton active';
		window.clearInterval(topsellers.interval);
		/*if(topsellerId!=1){
			topsellers.interval=window.setInterval("changeAutoTopseller()",12000);
		}else{
			topsellers.interval=window.setInterval("changeAutoTopseller()",20000);
		}*/
	}
}