terom@80: $.fn.extend({
terom@80:     /*
terom@80:      * Set background to solid color
terom@80:      */
terom@80:     background_color: function (r, g, b, a) {
terom@80:         if (a == undefined)
terom@80:             a = 1.0;
terom@80: 
terom@83:         this.css('background', 'rgba(' + (r * 255) + ', ' + (g * 255) + ', ' + (b * 255) + ', ' + a + ')');
terom@80:     },
terom@80: });