function writeTdone(rowNum)
{
	for(i=0; i<7; i++)
	{
		document.write('');
	}
} 
function writeTdtwo(rowNum)
{
	for(i=0; i<7; i++)
	{
		document.write('');
	}
} 
function titles(titleNum)
{
	var titleText = new Array("上午12点","上午1点","上午2点","上午3点","上午4点","上午5点","上午6点","上午7点","上午8点","上午9点","上午10点","上午11点","下午12点","下午1点","下午2点","下午3点","下午4点","下午5点","下午6点","下午7点","下午8点","下午9点","下午10点","下午11点");
	document.write(''+titleText[titleNum]+'');
}
function sky(z)
{
	z = z+1;
	alert("周" + z);
}
function writralldaylong ()
{
	for(z=0; z<7; z++)
	{
		document.write('');
	}
}
function titlehaed(titleNum)
{
	var headText = new Array("GMT+08");
	document.write(''+headText[titleNum]+'');
}

我是这样做的怎么给他们th里面每个加上不一样的ID呢？
我是用JS写出的一个表格 7天一周那么怎么用JS在这个7个格子里面每个添加一个ID呢?
也是用JS写的请问 用for写出来