function colordark(tab,num)
{
	col=new Array('#ffffff','#ffd0d0','#d0ffd0','#d0d0ff','#ffffff');
	dv=document.getElementById(tab);
	dv.style.background=col[num];
}

function colorlight(tab,num)
{
	col=new Array('#ffffff','#fff0f0','#f0fff0','#f0f0ff','#f0f0f0');
	dv=document.getElementById(tab);
	dv.style.background=col[num];
}

function openWinComm() {
	dv=document.getElementById('tabCom');
	dv.style.display='block';
	return false;
}