function path2id($s_path){
if(!is_string($s_path) || !ereg("^[a-zA-Z0-9/_-]+$",$s_path)) return false;
//if(substr($s_path,-10)=='index.html')
// $s_path=substr($s_path,0,-10);
//if(substr($s_path,-5)=='.html')
// $s_path=substr($s_path,0,-5);
if(substr($s_path,-1)=='/')
$s_path=substr($s_path,0,-1);
if(strlen($s_path)&&$s_path[0]=='/')
$s_path=substr($s_path,1);
$p=split('/',$s_path);
$id = 1;
for($i=0;$i<sizeof($p);$i++){
$res=mysql_query("SELECT id FROM pages_set WHERE p_id = '".$id."' AND name = '".$p[$i]."'");
if(mysql_num_rows($res)==0)
return false;
$id=mysql_result($res,0,0);
}
return $id;
}