Cols fn

gistfile1.txt

function colsWidth($num_cols,$total_width, $total_cols, $gutter_width){
	if(typeof $total_cols === undefined){
		$total_cols = 6;
	}

	if(typeof $gutter_width === undefined){
		$gutter_width = 10;
	}

	var col_width = ($total_width - ($gutter_width * 2 * $total_cols) ) / $total_cols;
	return (col_width * $num_cols) + (($gutter_width * 2)  * ($num_cols - 1));
}