// sha2fet ajaxeye
var hand = function(str){
	window.document.getElementById('captcha_image').src=str;	
	var code_hid = str.substr(17,5);
	window.document.getElementById('captcha_code_hid').value=code_hid;
}
function refreshCaptcha(){

	var strDomain='';
	var ajax = new Ajax();	
	ajax.doGet(strDomain+'captcha_rand_refresh.php',hand,'text');	
}