function showlayer(id,index)
{
	eval("document.getElementById('tab4_"+id+"').className='active'");
	eval("document.getElementById('tab4_"+index+"').className='normal'");
	eval("document.getElementById('layer4_"+id+"').style.display='block'");
	eval("document.getElementById('layer4_"+index+"').style.display='none'");
}
function showlayer1(id,index,other,last,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('tab"+num+"_"+last+"').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'");
	eval("document.getElementById('layer"+num+"_"+last+"').style.display='none'");
}