function CheckForm(theForm)
{
	var radioSelected=false;
	
	for (i=0;i<theForm.VoteItemID.length;i++)
	{
		if (theForm.VoteItemID[i].checked)
			radioSelected=true;
	}

	if (!radioSelected)
	{
		alert("请先选择投票项目！");
		return false;
	}

	return true;
}