<!--
	var username='';
	var the_cookie=document.cookie;
	var each_cookie=the_cookie.split('; ');
	for(var i=0;i<each_cookie.length;i++)
	{
		var  each_value=each_cookie[i].split('=');
		if(each_value[0]=='username')
			username=each_value[1];
	}
    function login_check()
    {
     if(document.login.username.value==""){
        alert("Enter your username.");
		return false;
		}
     else if(document.login.username.value.length<3 || checkname(document.login.username.value)==false){
         alert("error username,try again");
		 return false;
		 }
     else if(document.login.password.value==""){
        alert("Enter your password.");
		return false;
		}
      else if(document.login.password.value.length<3){
         alert("error username,try again.");
		 return false;
		 }
	  else{
	  	 //document.login.submit();
		 return true;
		 }
    }


function checkname(str){
	var valid_char="0123456789abcdefghijklmnopqrstuvwxyz_-.ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	var flag=0;
	outloop:
	for(i=0;i<str.length;i++)
	{
    	for(x=0;x<valid_char.length;x++)
		{
        	if(str.charAt(i)==valid_char.charAt(x))
            	break;
        	else
           		flag++;
       	}
		if(flag==valid_char.length)
		{
			return false;
	    	break outloop;
  	 	}	
		else
			flag=0;
	}
}
function read_cookie(opt)
{
	if(username.indexOf('%40') != -1)
	{
		var username_value=username.split('%40')
		document.login.username.value=username_value[0];
		//document.login.mail_domain.value=username_value[1];
	}
}
//-->