rgba

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Summary

Browser-independent alpha-channel management.

Syntax

keyman.util.rgba(s, r, g, b, a);

Parameters

s : Type: Element : Element style object

r : Type: number : Value for red (0-255)

g : Type: number : Value for green (0-255)

b : Type: number : Value for blue (0-255)

a : Type: number : Value for alpha/opacity (0-1.0)

Return Value

string : Background color CSS value.

Description

This function returns the required string value for setting background transparency, and applies an appropriate a filter to the element for IE versions before IE9.