// JavaScript Document
/*code*/
function onkeycode()
{
	document.getElementById("c").className="smsg";
	document.getElementById("c").innerHTML="点击图片可换一张";
}
function upkeycode()
{
 var imgcode=getCookie("yzmcode");
 var txts=document.getElementById("code").value;
if(txts.toUpperCase()!= imgcode){
	document.getElementById("c").className="errmsg";
	document.getElementById("c").innerHTML="请输入正确验证码";
		return false;
}else {return true;}

}
function checkform()
{
	var code=document.getElementById("code").value;
	if(!upkeycode()){
		return false;
	}
	else
	{
		return true;
	} 
}
//获取cookie值
function getCookie(cookie_name)

{

var allcookies = document.cookie;

var cookie_pos = allcookies.indexOf(cookie_name);

if (cookie_pos != -1)

{

cookie_pos += cookie_name.length + 1;

var cookie_end = allcookies.indexOf(";", cookie_pos);

if (cookie_end == -1)

{

cookie_end = allcookies.length;

}

var value = unescape(allcookies.substring(cookie_pos, cookie_end));

}

return value;

}