function check(editflag) {
		//邮件地址
		var v_ADDR_Name = document.form1.ADDR_Name.value;   
		//取出订阅、退订的周刊种类
		var v_SENDSTYLE = choose();
		if (v_ADDR_Name=="") {

			alert("邮件地址是空！");

			document.form1.ADDR_Name.focus();

			document.form1.ADDR_Name.select();

			return false;

		}else if (!checkMailAddr(v_ADDR_Name)){

			alert("邮件地址格式不正确！");

			document.form1.ADDR_Name.focus();

			document.form1.ADDR_Name.select();

			return false;

		}else if(v_SENDSTYLE=="" || v_SENDSTYLE == null){

			alert("周刊种类必选！");

			return false;

		}else{

			var newWindow=window.open("","mail_result", "width=400, height=320, toolbar=no, scrollbars=yes, resizable=yes maxnimize=yes status=no location=no");

			document.form1.flag.value=editflag;

			document.form1.SENDSTYLE.value=v_SENDSTYLE;

			document.form1.action="http://weekly.ec.com.cn/ciecc/channel/weekly/emailsub.jsp";

			document.form1.submit();


		}

	}

	

	//checkbox取值

		function choose(){

		var trenlist="";

		var tren="";

		var recnum = 4;

		for(var i=0;i<recnum;i++){					

			if(document.form1.weekly_type[i].checked){

				if(document.form1.weekly_type[i].value!=tren){

					trenlist=trenlist+document.form1.weekly_type[i].value+",";

					tren=document.form1.weekly_type[i].value;

				}

			}

		}		

		if(trenlist!=""){

			trenlist=trenlist.substring(0,trenlist.length-1);

		}else{

			trenlist ='';

		}

		return trenlist;

	}

	//邮件格式合法性检查

	function checkMailAddr(input) {

		var str = input;    

		if(str.length!=0){    

			reg=/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;    

			if(!reg.test(str)){

				return false;

			}

		}

		return true;

	}