function getObjById( idName ){
	if ( document.getElementById ) { //N6,Moz,IE5,IE6
		return document.getElementById( idName )
	} else if ( document.all ) { //IE4
		return document.all( idName )
	}
}


function dd(obj){
	new Image().src = "/images/top/info_minus.gif";
	op = "/images/top/info_minus.gif";
	cl = "/images/top/info_plus.gif";
	OBJ1 = getObjById( obj ).style;
	IMG1 = getObjById( obj + "i" );
	if ( OBJ1 && IMG1 ) {
		OBJ1.display = ( OBJ1.display == 'none' ) ? '' : 'none';
		IMG1.src = ( IMG1.src.indexOf( 'info_plus' ) > 0 ) ? op : cl;
	}
}