function changeImage()
			{
				var img=document.getElementById("yzm");
				img.src=img.src +"?";
			} 
var state
state=true
var mail
function checkinfo()
{
mail=document.getElementById("email")
var ob=document.getElementById("title")
ob.onchange=function()
{
ob.style.cssText=""
}
ob.onblur=function()
{
if(ob.value=="")
{
	ob.style.cssText="background:#FFFF00;color:#000000;font-size:12px;border: 1px solid #FF2D2D;"
}
}
mail.onchange=function()
{
mail.style.cssText=""
}
mail.onblur=function()
{
	var getplace=mail.value.indexOf("@")
	var mailgroup=mail.value.split(".")
	if((mailgroup[0].length-getplace-1)<3)
	{
	state=false
	}

	if(mailgroup[1]==undefined)
	{
	state=false
	}
	else
	{
		state=true
		if(mailgroup[1].length<2 || mail.value=="" || getplace<3)
		{
		state=false
		}
		else
		{
		state=true
		}
	}


	if(state==false)
	{
	mailerror()
	}
}
}
function mailerror()
{
mail.value=""
	mail.style.cssText="background:#FFFF00;color:#000000;font-size:12px;border: 1px solid #FF2D2D;"
	//alert("请输入正确邮件地址")
	state=true
}
checkinfo()