function purchase_check(){
	var chk_list													= document.getElementById("chk_list_str").value;
	startRequest("POST", "/music/index.php", "todo=check&chk_list_str=" + chk_list, purchase_check_result);
}

function purchase_check_result(){
	var arr_response												= xmlHttp.responseText.split("||");
	document.getElementById("execLayer").innerHTML					= xmlHttp.responseText;
	
	var ResultCode													= arr_response[0];
	var ResultMessage												= arr_response[1];
	
	// Á¤»ó´Ù¿î
	if(ResultCode == "0000"){
		if(!confirm(ResultMessage)){
			return;
		}
		
		var form												= document.base_form;
		form.todo.value											= "purchase";
	
		form.method												= "post";
		form.action												= "/music/index.php";
		form.submit();
	}
	
	// ¿¡·¯Ã³¸®
	else{
		if(parseInt(ResultCode) >= 8000 && parseInt(ResultCode) <= 8999){
			if(!confirm(ResultMessage)){
				flag_download_click									= 0;
				return;
			}
		}else{
			flag_download_click										= 0;
			alert(ResultMessage);
		}
	}
}