function before_submit(obj)
{
	var itemname=document.all.subject5;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}


function before_submit1(obj)
{
	var itemname=document.all.newsubject7;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}


//全国用
function before_6(obj)
{
	var itemname=document.all.subject6;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>15)
	{ 
		obj.checked = false;
		alert('只能选择15项');
		return false;
	}
}
function before_7(obj)
{
	var itemname=document.all.subject7;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>15)
	{ 
		obj.checked = false;
		alert('只能选择15项');
		return false;
	}
}
//全国用end

//华南用
function before_6hn(obj)
{
	var itemname=document.all.subject6;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>15)
	{ 
		obj.checked = false;
		alert('只能选择15项');
		return false;
	}
}
function before_7hn(obj)
{
	var itemname=document.all.subject7;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>15)
	{ 
		obj.checked = false;
		alert('只能选择15项');
		return false;
	}
}

function before_15hn(obj)
{
	var itemname=document.all.subject15;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>6)
	{ 
		obj.checked = false;
		alert('只能选择6项');
		return false;
	}
}
function before_16hn(obj)
{
	var itemname=document.all.subject16;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>6)
	{ 
		obj.checked = false;
		alert('只能选择6项');
		return false;
	}
}
//华南用end

//华东用
function before_6hd(obj)
{
	var itemname=document.all.subject6;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>25)
	{ 
		obj.checked = false;
		alert('只能选择25项');
		return false;
	}
}
function before_7hd(obj)
{
	var itemname=document.all.subject7;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>25)
	{ 
		obj.checked = false;
		alert('只能选择25项');
		return false;
	}
}

function before_15hd(obj)
{
	var itemname=document.all.subject15;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>15)
	{ 
		obj.checked = false;
		alert('只能选择15项');
		return false;
	}
}
function before_16hd(obj)
{
	var itemname=document.all.subject16;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>15)
	{ 
		obj.checked = false;
		alert('只能选择15项');
		return false;
	}
}
//华东用end

//华北用
function before_6hb(obj)
{
	var itemname=document.all.subject6;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>10)
	{ 
		obj.checked = false;
		alert('只能选择10项');
		return false;
	}
}
function before_7hb(obj)
{
	var itemname=document.all.subject7;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>10)
	{ 
		obj.checked = false;
		alert('只能选择10项');
		return false;
	}
}

function before_15hb(obj)
{
	var itemname=document.all.subject15;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>10)
	{ 
		obj.checked = false;
		alert('只能选择10项');
		return false;
	}
}
function before_16hb(obj)
{
	var itemname=document.all.subject16;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>10)
	{ 
		obj.checked = false;
		alert('只能选择10项');
		return false;
	}
}
//华北用end

//华中用
function before_6hz(obj)
{
	var itemname=document.all.subject6;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}
function before_7hz(obj)
{
	var itemname=document.all.subject7;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}

function before_15hz(obj)
{
	var itemname=document.all.subject15;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>6)
	{ 
		obj.checked = false;
		alert('只能选择6项');
		return false;
	}
}
function before_16hz(obj)
{
	var itemname=document.all.subject16;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>6)
	{ 
		obj.checked = false;
		alert('只能选择6项');
		return false;
	}
}
//华中用end

//西南用
function before_6xb(obj)
{
	var itemname=document.all.subject6;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}
function before_7xb(obj)
{
	var itemname=document.all.subject7;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}

function before_15xn(obj)
{
	var itemname=document.all.subject15;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>3)
	{ 
		obj.checked = false;
		alert('只能选择3项');
		return false;
	}
}
function before_16xn(obj)
{
	var itemname=document.all.subject16;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>3)
	{ 
		obj.checked = false;
		alert('只能选择3项');
		return false;
	}
}
//西南用end

//北京，上海用
function before_6bj(obj)
{
	var itemname=document.all.subject6;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}
function before_7bj(obj)
{
	var itemname=document.all.subject7;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}


function before_15sh(obj)
{
	var itemname=document.all.subject15;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>8)
	{ 
		obj.checked = false;
		alert('只能选择8项');
		return false;
	}
}
function before_16sh(obj)
{
	var itemname=document.all.subject16;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>8)
	{ 
		obj.checked = false;
		alert('只能选择8项');
		return false;
	}
}


function before_15bj(obj)
{
	var itemname=document.all.subject15;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}
function before_16bj(obj)
{
	var itemname=document.all.subject16;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>5)
	{ 
		obj.checked = false;
		alert('只能选择5项');
		return false;
	}
}
//北京，上海用end



//单选题
function before_8(obj)
{
	var itemname=document.all.subject8;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>1)
	{ 
		obj.checked = false;
		alert('第10题为单选项');
		return false;
	}
}
function before_17(obj)
{
	var itemname=document.all.subject17;
	var select_count;
	select_count=0;
	for(var i=0;i<itemname.length;i++)
	{
		if(itemname[i].checked == true)
		{
			select_count=select_count+1;
		}
	}
	if(select_count>1)
	{ 
		obj.checked = false;
		alert('第23题为单选项');
		return false;
	}
}
//单选题end

function before_kong()
{
	if(document.all.subject2.value == null || document.all.subject2.value == "")
	{
		alert ('所在城市不能为空');
		return false;
	}
	if(document.all.xingming.value == null || document.all.xingming.value == "")
	{
		alert ('姓名不能为空');
		return false;
	}
	if(document.all.shenfen.value == null || document.all.shenfen.value == "")
	{
		alert ('您的地址不能为空');
		return false;
	}
	if(document.all.lxfs.value == null || document.all.lxfs.value == "")
	{
		alert ('您的电话不能为空');
		return false;
	}
}