function getdyitem()
	{
	        var newsitems =document.getElementsByName('newsitem');
	        var newsitemcount="";
	        var email=document.getElementById('dyemail').value;
			var patrn=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z]+$/;
		    var yeslogin = document.getElementById("yeslogin").value;
		    var returnurl = document.getElementById("returnurl").value;
			if(email=='' || email==null)
	     	{
	     	  alert("请输入邮箱地址！");
			  document.getElementById('email').focus();
			  return false ;
			}
		   if (!patrn.exec(email))
		   {
			   alert('请正确填写邮箱地址！');
			  document.getElementById('nemail').focus();
				return false ;  
		    }
		    else
		    {
			   for(var i =0;i<newsitems.length;i++)
			   {
			         if(newsitems[i].checked)
			         {
			            newsitemcount+=newsitems[i].value+',';
			         }
			     }
			   document.getElementById('itemtypesum').value=newsitemcount;
			   if(document.getElementById('itemtypesum').value==''  || document.getElementById('itemtypesum').value==null)
			   {
			      alert('请选择你要订阅的信息');
			      return false;
			   }
	           if(yeslogin!="y")
		       {
			         var ReturnValue =
			      window.showModalDialog("/quicksubscible.ha?showid="+document.getElementById('itemtypesum').value+'&email='+email+'&returnurl='+returnurl,window,"status:no;resizable:no;directories:no;help:no;scroll:no;dialogWidth=350px;dialogHeight=280px;dialogLeft:500px;dialogTop:300px;");
	             	if(ReturnValue=='y')
	             	{
					     document.getElementById('yeslogin').value="y";
					}
			   }
			 window.location.reload();
		  }
   }