function Chg_img(ind, sens, path){
	if ((sens == 1) && (ind == parseInt(document.getElementById("max_ind").value) -1)) {
		ind = parseInt(document.getElementById("min_ind").value);
	}
	else if ((sens == -1) && (ind == parseInt(document.getElementById("min_ind").value)))  {
		ind = parseInt(document.getElementById("max_ind").value) -1;
	} 
	else {
		ind = ind + sens;
	}
	document.getElementById("ImageGal").src = path + document.getElementById("img_" + ind).value;
	document.getElementById("LinkGal").href = document.getElementById("link_" + ind).value;
	document.getElementById("LinkGal2").href = document.getElementById("link_" + ind).value;
	
	document.getElementById('lgd').innerHTML = document.getElementById("lgd_" + ind).value;
	if (document.getElementById('lgd').innerHTML.length)
	{
  		document.getElementById('lgd').innerHTML += '<img title="visualiser" alt="visualiser" src="' + document.getElementById("config").value + '">';
	}
	return ind;
}