var current_img  = 1;

function img_next( mlsid ){
	if( current_img >= parseInt($('photo_count').value) ){
		alert('There are no more photos for this property ');
		return;
	}
	current_img 	=	current_img + 1;
	var src 		=	$('img_dir').value+mlsid+'_'+current_img+'.jpg';
	$('photo').src= src;
	$('img_dx').innerHTML =	current_img;   
}

function img_prev(  mlsid ){
	if( current_img == 1){		
		return;
	}
	current_img 	=	current_img - 1;
	var src 		=	$('img_dir').value+mlsid+'_'+current_img+'.jpg';
	$('photo').src= src;	
	$('img_dx').innerHTML =	current_img;
}