function getById(x) {
    if (typeof x == "string") return document.getElementById(x);
    return x;
};

function setText( fntSize, txtSize ) {
  col1.style.fontSize = fntSize;
  col2.style.fontSize = fntSize;
  setCookie( "srca_text_size", txtSize, 30, '/', '', '' );
};

function setTextSmall () {
  setText( smTxt, 'small' );
  return false;
};

function setTextMedium () {
  setText( mdTxt, 'medium' );
  return false;
};

function setTextLarge () {
  setText( lgTxt, 'large' );
  return false;
};

function processTextSize( textSize ) {
  if      ( textSize == 'small'  ) { return;          }
  else if ( textSize == "medium" ) { setTextMedium(); }
  else if ( textSize == "large"  ) { setTextLarge();  }
}

function setCookie( name, value, expires, path, domain, secure ) {
  // see http://techpatterns.com/downloads/javascript_cookies.php for documentation
  // of all cookie functions
  // set time, it's in milliseconds
  var today = new Date();
  today.setTime( today.getTime() );
  /*
  if the expires variable is set, make the correct
  expires time, the current script below will set
  it for x number of days, to make it for hours,
  delete * 24, for minutes, delete * 60 * 24
  */
  if ( expires ) {
    expires = expires * 1000 * 60 * 60 * 24;
  }
  var expires_date = new Date( today.getTime() + (expires) );

  document.cookie = name + "=" +escape( value ) +
  ( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
  ( ( path ) ? ";path=" + path : "" ) +
  ( ( domain ) ? ";domain=" + domain : "" ) +
  ( ( secure ) ? ";secure" : "" );
}

function getCookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f
	for ( i = 0; i < a_all_cookies.length; i++ ) {
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );
		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');
		// if the extracted name matches passed check_name
		if ( cookie_name == check_name ) {
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 ) {
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found ) { return null; }
}

function deleteCookie( name, path, domain ) {
if ( getCookie( name ) ) document.cookie = name + "=" +
( ( path ) ? ";path=" + path : "") +
( ( domain ) ? ";domain=" + domain : "" ) +
";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}

var smTxt = '1em',
    mdTxt = '1.1em',
    lgTxt = '1.2em',
    col1,
    col2;

window.onload = function () {
                  col1 = getById( 'two_col_wrap' );
                  col2 = getById( 'promo' );
                  getById( 'btnSm' ).onclick = setTextSmall;
                  getById( 'btnMd' ).onclick = setTextMedium;
                  getById( 'btnLg' ).onclick = setTextLarge;
                  // this could be used with the get url values
                  // getVars = window.location.href.slice(window.location.href.indexOf('?') + 1).split('=');
                  textSizePreference = getCookie( "srca_text_size" );
                  if ( textSizePreference === null ) {
                    setCookie( "srca_text_size", "small", 30, '/', '', '' );
                  }
                  // console.log( textSizePreference );
                  processTextSize( textSizePreference );
};