function changePicture(img, galid,myalt,mywidth,myheight,myftid) {
		document.getElementById(galid).setAttribute('src',img);
		document.getElementById(galid).setAttribute('alt',myalt);
		document.getElementById(galid).setAttribute('title',myalt);bigid='b'+galid;
			document.getElementById(bigid).setAttribute('href',img);
			var footerid=galid+'ft';
			var nottransparent=true;
			try {
				var nodcontent=document.getElementById(myftid).firstChild.nodeValue;
			}
			catch(err) {
				nodcontent='.'
				document.getElementById(footerid).setAttribute('class','transparent');
				nottransparent=false;
				
			}
			if (nottransparent) {
				document.getElementById(footerid).setAttribute('class','nottransparent');
			}
			document.getElementById(footerid).firstChild.nodeValue=nodcontent;
			
	}