(function($) {
$(document).ready(function() {

	var colSets = $( '.colSet' );
	colSets.each( function( index, element ) {
		var colSet = $(this);
		var columns = colSet.children( '.sColumn' );
		var colNum = columns.length;
		var freeCols = 12;

		columns.each(function( index, element ) {

			// column does not have specified width
			if( ! $(this).is( '[class*=col-lg-]' ) ) {
				return;
			}

			var columnClasses = $(this).attr( 'class' ).split(' ');
			var numCols = 0;

			// Get # of initial grid columns assigned for the column
			for( var key in columnClasses ) {
				var currClass = columnClasses[key];
				if( currClass.indexOf( 'col-lg-' ) >= 0 ) {
					numCols = currClass.substr(currClass.length - 2);
					if( numCols.substr(0, 1) == '-' ) {
						numCols = numCols.substr( numCols.length - 1 );
					}
				}
			}

			// Adjust the remaining freeCols accordingly
			freeCols -= numCols;

			// Check if user provided widths with total that exceeds 100%.
			// If so, just divide all columns evenly. 
			// If number is not exactly divisible => add remainder to the last column.
			if( freeCols < 0 ) {
				freeCols = 12;
				colNum = columns.length;
				columns.each(function( index, element ) {
					$(this).attr( 'class', function (i, c) {
						return c.replace( /col-lg-(\d+)/, 'col-lg-' + freeCols/colNum );
					});
					freeCols -= freeCols/colNum;
					colNum--;
				});
				colNum = 0;
				return;
			}

			// Account for all columns having the class col-lg-..
			colNum--;
		});

		// Apply free width to the rest of the columns
		if( colNum != 0 ) {
			var numCols = Math.floor(freeCols / colNum);
			columns.each(function(index, element) {
				if( ! $(this).is( '[class*=col-lg-]' ) ) {
					$(this).addClass( 'col-lg-' + numCols );
					freeCols -= numCols;
				}
			});
		}

		// If all columns have set width, but freeWidth is remaining, add it to the last column
		if( freeCols != 0 ) {
			var $lastCol = columns.last();

			var lastColClasses = $lastCol.attr( 'class' ).split(' ');
			for( var key in lastColClasses ) {
				var currClass = lastColClasses[key];
				if( currClass.indexOf( 'col-lg-' ) >= 0 ) {
					numCols =  Number( currClass.substr(currClass.length - 1) );
					numCols += freeCols;
					$lastCol.removeClass(currClass);
				}
			}
			$lastCol.addClass( 'col-lg-' + numCols );
		}

	});

});
})(jQuery);