function button_click(id) {
 $('.version-mac').html($('.version-mac').attr('default_value'));
 $.ajax({
   type: "POST",
   url: "/ajax/",
   data: "button="+id
 });
}
function notify_me(topic,email) {
 $('.send-email .error').css({ 'visibility':'hidden' });
 $('#notify-form').css({ 'display':'none' });
 $('#loading').css({ 'display':'block' });
 $.ajax({
   type: "POST",
   url: "/ajax/",
   data: { "email": email, "topic": topic },
   success: function(msg){
	 $('#loading').css({ 'display':'none' });
	if (msg!='') {
		 $('.send-email .error').css({ 'visibility':'visible' });
		 $('#notify-form').css({ 'display':'block' });
	} else {
		 $('#notify-thankyou').css({ 'display':'block' });
	}
   }
 });
}
function show_popup(event) {
 $('.send-email').css({
   'display':'block',
   'left':event.clientX+'px',
   'top':event.clientY+$(window).scrollTop()+'px'
 });
}
function hide_popup() {
 $('input[name=q]').val='';
 $('.send-email .error').css({ 'visibility':'hidden' });
 $('.send-email').css({ 'display':'none' });
 $('#notify-form').css({ 'display':'block' });
 $('#notify-thankyou').css({ 'display':'none' });
}
function erase_default_value(obj) {
	if (obj.value==obj.getAttribute('default_value')) {
		obj.value='';
	}
}
function restore_default_value(obj) {
	if (obj.value=='') {
		obj.value=obj.getAttribute('default_value');
	}
}
function validate_form(obj) {
	search_string = obj.q.value;
	if (search_string.match(/[^0-9]/)) {
		alert(obj.getAttribute('wrong_GID'));
		return false;
	} else if (search_string=='') {
		alert(obj.getAttribute('empty_GID'));
		return false;		
	} else {
		return true;
	}
}