function showlayer(id,index)
{
	eval("document.getElementById('tab_"+id+"').className='active'");
	eval("document.getElementById('tab_"+index+"').className='normal'");
	eval("document.getElementById('layer_"+id+"').style.display='block'");
	eval("document.getElementById('layer_"+index+"').style.display='none'");
}
function showlayer2(id,index,other,num)
{
	eval("document.getElementById('tab"+num+"_"+id+"').className='active'");
	eval("document.getElementById('tab"+num+"_"+index+"').className='normal'");
	eval("document.getElementById('tab"+num+"_"+other+"').className='normal'");
	eval("document.getElementById('layer"+num+"_"+id+"').style.display='block'");
	eval("document.getElementById('layer"+num+"_"+index+"').style.display='none'");
	eval("document.getElementById('layer"+num+"_"+other+"').style.display='none'");
}
function showlayer3(id,num)
{
	for (i=1;i<8;i++)
	{
		eval("document.getElementById('tab"+num+"_"+i+"').className='normal'");
		eval("document.getElementById('layer"+num+"_"+i+"').style.display='none'");
	}
	eval("document.getElementById('tab"+num+"_"+id+"').className='active'");
	eval("document.getElementById('layer"+num+"_"+id+"').style.display='block'");
}
function showlayer4(id,num)
{
	for (i=1;i<7;i++)
	{
		eval("document.getElementById('tab"+num+"_"+i+"').className='normal'");
		eval("document.getElementById('layer"+num+"_"+i+"').style.display='none'");
	}
	eval("document.getElementById('tab"+num+"_"+id+"').className='active'");
	eval("document.getElementById('layer"+num+"_"+id+"').style.display='block'");
	
}
function showlayer5(id,num,index)
{
	eval("document.getElementById('tab"+num+"_"+id+"').className='active'");
	eval("document.getElementById('tab"+num+"_"+index+"').className='normal'");
	eval("document.getElementById('layer"+num+"_"+id+"').style.display='block'");
	eval("document.getElementById('layer"+num+"_"+index+"').style.display='none'");
}