Photoshop region to percentageOfOne as float

selectionToPercentF.jsx

str = activeDocument.selection.bounds.toString();
str = str.replace(/ px/g,"");		//" px"要らないので削除
array = str.split(",");				//","で分割

var w = app.activeDocument.width.toString().replace(' px', '');
var h = app.activeDocument.height.toString().replace(' px', '');
str = parseFloat(array[0] /w) + "f," +	// x
	  parseFloat(array[1] /h) + "f," +  // y
	  parseFloat((Number(array[2]) ).toString() /w)+ "f," + //width
	  parseFloat((Number(array[3]) ).toString() /h)+ "f";		   //height

//クリップボードに送る処理
var txd=app.charIDToTypeID('TxtD');
var kttc = app.stringIDToTypeID( "textToClipboard" );
var ad = new ActionDescriptor();
ad.putString(txd,str);

// http://crosseaglet.blogspot.com/2015/02/photoshoprect.html
executeAction( kttc, ad, DialogModes.NO );