function checkUsername(username) {
		//return /^[a-zA-Z\d\.\@\-_]+$/.test(username);
	 	var pos = username.indexOf("@");
	 	if(pos == -1)
	 		return username.length > 0;
	 	else{
	 		var ssn = username.substring(0,pos);
	 		return ssn.length > 0;
	 		
	 	}
	 	
	}
	
function checkdata() {
   var form = document.getElementsByName("form")[0];
   if( form.username && !checkUsername(form.username.value)) {
      alert("\请您输入正确的网易通行证用户名!")
      form.username.focus()
      return false;
   }

   if( form.password && form.password.value.length<1 ) {
      alert("\请您输入密码!")
      form.password.focus()
      return false;
   }
   
   var phones = document.getElementsByName("phone");
   var nullPhone = 0;
   if(phones && phones.length>0){
      for(var i=0; i < phones.length; i++){
	   if (phones[i].value.length!=0){
		   if( phones[i].value.length<7 || phones[i].value.length > 14 || !/^[+01]+\d+-*\d+$/.test(phones[i].value)) {
			   alert("\请输入正确的电话号码格式!")
			   phones[i].focus()
			   return false;
			} else {
				for(var j=0; j < phones.length; j++){
					if(j != i && phones[j].value.length > 0){
					    
						if(phones[j].value == phones[i].value){
							alert("\请不要重复输入电话号码！");
							phones[j].focus()
				   			return false;
						}
					}
				}
			}
	   } else {
	   		nullPhone ++;
	   }
   }
	   if(nullPhone == phones.length){
	   		alert("\请输入电话号码!")
			phones[0].focus()
			return false;
	   }
   }
  

   if( form.radomPass && form.radomPass.value.length<1 ) {
      alert("\请您输入校验码!")
      form.radomPass.focus()
      return false;
   }
   
     if( form.usercheckcode && form.usercheckcode.value.length<1 ) {
      alert("\请输入图片中的文字!")
      form.usercheckcode.focus()
      return false;
   }
   
       
}


function strlen2(str){
	var len;
	var i;
	len = 0;
	for (i=0;i<str.length;i++){
		if (str.charCodeAt(i)>255) return true;
	}
	return false;
}


function goBack(url){
  		document.location.replace(url);
  	}
  	
  	
  	
function haveDial(){
   if( document.getElementsByName("radomPass")[0].value.length<1 ) {
      alert("\请您输入校验码!")
      document.getElementsByName("radomPass")[0].focus();
      return false;
   } else { return true;}
}  	


function externalLinks() { 
　　if (!document.getElementsByTagName) return; 
　　var anchors = document.getElementsByTagName("a"); 
　　for (var i=0; i<anchors.length; i++) { 
	　　var anchor = anchors[i]; 
	　　if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") 
	　　anchor.target = "_blank"; 
　　} 
　} 
window.onload = externalLinks;