String.prototype.trim   =   function(){  
		//   用正则表达式将前后空格  
		//   用空字符串替代。  
		return   this.replace(/(^\s*)|(\s*$)/g,   "");  
	}
	function goLogin(){
		type = 'loginstate';
		if(check_submit()){
			var obj_proof 	 = document.submitfrm.proof.value.trim();
			var obj_password = document.submitfrm.password.value.trim();
		}else{
			return;	
		}

sendRequest('do.php?proof='+encodeURIComponent(obj_proof)+'&password='+encodeURIComponent(obj_password)+'&method=3');
	}

	function check_submit(){

		var obj_proof 		= document.submitfrm.proof;
		var obj_password 	= document.submitfrm.password;
		
		if(obj_proof.value.trim() == ''){
			alert("登录名为空,请您填写登录名!");
			obj_proof.focus();
			return false;
		}
	
		if(obj_password.value.trim() == ''){
			alert("密码为空,请您填写密码!");
			obj_password.focus();
			return false;
		}
		return true;
	}
	
	function regist(){
		window.location.href = "/register/register.php";	
	}