function previewImage(imageName, arrImageData, iImageID, iWidth) {
	var objImage = eval( "document." + imageName );
	
	for(var i=0; i<arrImageData.length; i++){
		if (arrImageData[i]["id"] == iImageID){
			arrImageData[i]["visited"] = true;
			objImage.src = arrImageData[i]["preview_fileref"];
			break;
		}
	}
}

function openImage(arrImageData) {
	for(var i=0; i<arrImageData.length; i++){
		if (arrImageData[i]["id"] == iActiveImageID){
			openViewer(arrImageData[i]["viewer_fileref"]);
			break;
		}
	}
	
	
}

function setActiveImage(iID){	
	if (iID != iActiveImageID){
		for (var i=0; i<document.links.length; i++) {
			if (document.links[i].name == iID){
				document.links[i].style.background = "#CCCCCC";
			}
			if (document.links[i].name == iActiveImageID){
				document.links[i].style.background = "#EEEEEE";
			}
		}
		iActiveImageID = iID;
	}
}

function openViewer(strURL){
	window.open(strURL,'image_viewer','width=530,height=500,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=yes');
}