SaveCurrent File as .PNG automatic, not a copy..smart like

Question

I'm looking for a script that takes the file I'm working on.. usually a .psd looks at the current saved filename and where its existing saved directory location is, and saves out a .PNG file to the same directory overwriting any existing file that might already exist with the same filename and extension.
So if i'm working on buttons.psd, I use the script.. it should save out a buttons.png to the same directory as buttons.psd ... no message prompts pestering me to remove the stupid " copy.png" string.. and no prompts about the interlaced choice. Just automated.. it would be HUGE time saver.
wouldn't mind if it could be adapted to do the same for other formats like .jpg, .gif aswel.. but mainly working with png files, and the constant baby sitting and ok promts, renaming files (ie removing the sodding copy string.. " ok the overwrite propmt etc etc etc .. .. the constant Adobe donkey **** application workflow that has still yet to be improved is really killing.

Answer 1

#target photoshop
app.bringToFront();
$.localize = true;
docRef = app.activeDocument
var x = separateFileName(docRef.name)
theFile = new File ( docRef.path + "/" + x['filename'] + '.png')
if (theFile.exists) {
theFile.remove()
docExportOptions = new ExportOptionsSaveForWeb
docExportOptions.format = SaveDocumentType.PNG //-24 //JPEG, COMPUSERVEGIF, PNG-8, BMP
docExportOptions.transparency = true
docExportOptions.blur = 0.0
docExportOptions.includeProfile = false
docExportOptions.interlaced = false
docExportOptions.optimized = true
docExportOptions.quality = 100
docExportOptions.PNG8 = false
docRef.exportDocument (theFile,ExportType.SAVEFORWEB,docExportOptions)
function separateFileName(theFileName){
if (/\.\w+$/.test(theFileName)) {
var m = theFileName.match(/([^\/\\]+)\.(\w+)$/);
if (m)
return {filename: m[1], ext: m[2]};
else
return {filename: 'no file name', ext:null};
} else {
var m = theFileName.match(/([^\/\\]+)$/);
if (m)
return {filename: m[1], ext: null};
else
return {filename: 'no file name', ext:null};