function check_password(this_){

     var form = this_;

     if(this_.value.length < 1) {
		 alert('wrong length');
		 form.select();
		 form.focus();
		 return 0;
     }
	 
  	  var comp   = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	  var string = form.value;
	  var len    = string.length;		
	  for(i=0;i<len;i++)
	  {
	
		if(comp.indexOf(string.substring(i,i+1)) < 0)
		{
			alert("wrong character ");
			form.select();
			form.focus();
			return 0;
		}
	  } 
	  
	return 1;  
}

function check_password(this_){

	var form = this_;
	
	if(form.value == ''){
		alert('パスワードを入力してください！ ');
	    form.focus;
		return 0;
	}
	
	return 1;
}

function check_start(this_){

	var form = this_;
	form.focus();
}