fnBrowseClickHandler = (oEvent) => {
			oEvent.preventDefault();
			oEvent.stopPropagation();
			this.FUEl.click(); // The default behaviour on click on label is to open "open file" dialog. The only way to attach click event that is transferred from the label to the button is this way. AttachPress and attachTap don't work in this case.
		}
Prepares the hidden IFrame for uploading the file (in static area).
@private