$(function(){
		$('#imgbtn').attr('disabled', false);
	})
	function check(){
		if(document.getElementById("truename").value==""){
			alert("真实姓名不能为空");
			document.getElementById("truename").focus();
			return false;
		}
		
		if(document.getElementById("mobile").value==""){
			alert("手机号码不能为空");
			document.getElementById("mobile").focus();
			return false;
		}
		
		if((document.getElementById("mobile").value.length<11)||(document.getElementById("mobile").value.length>12)){
			alert("手机号码位数不对");
			document.getElementById("mobile").focus();
			return false;
		}
		/*
		var mobile=document.getElementById("mobile").value;
		str=mobile.substr(0,2);
		if(str!="13" && str!="15" && str!="18"){
			alert("请输入有效的手机号码");
			document.getElementById("mobile").value="";
			document.getElementById("mobile").focus(); 
			return false;
		}*/
		
		if(document.getElementById("email").value!=''){
			if(document.getElementById("email").value.indexOf("@")==-1 || document.getElementById("email").value.indexOf(".")==-1){
				alert("邮件地址无效");
				document.getElementById("email").focus();
				return false;
			}
		}
		if(document.getElementById("buy_purpose")!=null&&document.getElementById("buy_purpose").value!='' && document.getElementById("buy_purpose").value.length>50){
			alert("购买意向字数应该小于50字");
			document.getElementById("buy_purpose").focus();
			return false;
		}
		document.getElementById("imgbtn").disabled=true;
		return true;
	}

	function switchcontactway(way){
		if(way=="tel"){
			document.getElementById("tel_span").style.display="";
			document.getElementById("mobile_span").style.display="none";
			document.getElementById("statement1").style.display="none";
			document.getElementById("statement2").style.display="";
			document.getElementById("contact_way").value="tel";
		}else if(way=="mobile"){
			document.getElementById("tel_span").style.display="none";
			document.getElementById("mobile_span").style.display="";
			document.getElementById("statement1").style.display="";
			document.getElementById("statement2").style.display="none";
			document.getElementById("contact_way").value="mobile";
		}
	}

	function check_sms(){
		document.getElementById("sms_flag").value="";
		for(var i=0;i<document.getElementsByName("check_sms[]").length;i++){
			if(document.getElementsByName("check_sms[]")[i].checked){
				document.getElementById("sms_flag").value=document.getElementById("sms_flag").value+document.getElementsByName("check_sms[]")[i].value;
			}else{
				document.getElementById("sms_flag").value="0";
			}
		}
	}