function change_image(obj){

	var oldsrc;
	if (obj.childNodes[0].src)
		oldsrc = obj.childNodes[0].src;
	else
		oldsrc = obj.childNodes[1].src;
	
	document.getElementById('poza_mare').src = oldsrc.replace("_1.jpg","_2.jpg");
	
}


function popup_image(root,obj){

	var src;
	
	if (obj.childNodes[0].src)
		src = obj.childNodes[0].src;
	else
		src = obj.childNodes[1].src;
	
	src = src.replace("_2.jpg","_4.jpg");
	
	var image = new Image();
	
	image.src = src;
	
	window.open(root+'preview.php?img='+src,'Zoom','scrollbars=yes,top=35,left=35,width='+(image.width+40)+',height='+(image.height+40)+',resizable=no');
	

}