// this script is a further variation of the script addTimeStamp.js that is installed with PH7
 
if ( documents.length > 0 )
{
	var originalRulerUnits = preferences.rulerUnits;
	preferences.rulerUnits = Units.PIXELS;
 
	try
	{
		var docRef = activeDocument;
 
		// Now create a text layer at the front
		var myLayerRef = docRef.artLayers.add();
		myLayerRef.kind = LayerKind.TEXT;
		myLayerRef.name = "path_layer";
 
		var myTextRef = myLayerRef.textItem;
		var TextBefore = "© 2008 ";
 
		// defining which folder
		// Fill in specific folder name between the quotes
		var myFolder = "ABC Clients/";
 
		// Find the number of characters in the specified folder name
                var myLength = myFolder.length;
 
		// creating a variable of specified folder
		var myGraphicsFolder = docRef.path.fsName.indexOf(myFolder);
 
		// Find the next forward slash in the folder structure
                var myWhatFolder = "/";
		var myNextFolder = docRef.path.fsName.indexOf(myWhatFolder, myGraphicsFolder+myLength)
 
		// originally i got the full path name
		// now the following puts the number of characters in my specified folder and more
		// this is where i need a lot of help please
		// This populates myTextRef with the information requested
		myTextRef.contents = myLength + " " + myNextFolder + " " + myGraphicsFolder + TextBefore + docRef.path.fsName.substring(myGraphicsFolder, myNextFolder) + " " + docRef.name
 
 
		// these are methods i thought to investigate as they may help in me trying to achieve what i need
		// "Graphics".indexOf(docRef.path.fsName, 0)
		// docRef.path.fsName.substr(40, 48)
		// "String Literal".indexOf(substring, startindex)
		// stringvar.substr(start [, length ])
		// stringObj.slice(start, [end])
		// stringvar.substr(start [, length ])
		// myTextRef.contents = docRef.path.fsName + "/" + docRef.name
		// var parsename = activeDocument.name.substring(0,2)
		// Set font size in Points
		myTextRef.size = 4;
 
		//Set font - use GetFontName.js to get exact name
		myTextRef.font = "Tahoma";
 
		//Set text colour in RGB values
		var newColor = new SolidColor();
	newColor.rgb.red = 0;
	newColor.rgb.green = 0;
	newColor.rgb.blue = 0;
	myTextRef.color = newColor;
 
 
		// off set the text to be in the top left corner
		myTextRef.position = new Array( 50, 50 );
 
		// Set the Blend Mode of the Text Layer. The name must be in CAPITALS - ie change NORMAL to DIFFERENCE.
		myLayerRef.blendMode = BlendMode.NORMAL;
 
		// select opacity in percentage
		myLayerRef.opacity = 100;
	}
	catch( e )
	{
		// An error occurred. Restore ruler units, then propagate the error back
		// to the user
		preferences.rulerUnits = originalRulerUnits;
		throw e;
	}
 
	// Everything went Ok. Restore ruler units
	preferences.rulerUnits = originalRulerUnits;
}
else
{
	alert( "You must have a document open to add the filename!" );
}
 
// end of code

function getFname(yStr){
	var sFileName = "";
	for (nloop=yStr.length-1;nloop>1;nloop--){
		if (yStr.charAt(nloop)=="/"){
			sFileName=yStr.substring(nloop+1,yStr.length);
			break;
		}
		if (yStr.charAt(nloop)=="\\"){  // backslash must be escaped
			sFileName=yStr.substring(nloop+1,yStr.length);
			break;
		}
	}
	return sFileName;
}

// this function accepts a string (yStr) and returns a string
function getFname(yStr){	
	var sFileName = "";	// this is an empty string to hold the string we parse of yStr
	for (nloop=yStr.length-1;nloop>1;nloop--){		
	// this loop begins with the last character in yStr and progresses to the first character, it passes through all the characters from end to beginning - unless the sought character is found (a forward or backward slash, in this case)
		if (yStr.charAt(nloop)=="/"){			
			// if a forward slash is found, set the empty string container to the substring from yStr containing the character after the backslash to the end of yStr and break out of the loop
			sFileName=yStr.substring(nloop+1,yStr.length);
			break;		
		}		
		if (yStr.charAt(nloop)=="\\"){  // backslash must be escaped			
			// if a backslash is found, set the empty string container to the substring from yStr containing the character after the backslash to the end of yStr and break out of the loop
			sFileName=yStr.substring(nloop+1,yStr.length);
			break;		
		}	
	}	
	// the substring (or an empty string, if no slash found) is returned to the caller
	return sFileName;
}