Page resizes after load visual effect, accessibility button (resizing text)

Hello All,

I have a question

I have a tool, that resizes texts on a page for accessibility

You can see an example here http://bit.ly/1mSN26K
in the header there are three A that resize the text when clicked

When i click to have bigger text, it works fine.
But then when i click on a menu item for example, the page loads in normal state, then switches to big text state, which makes a resize after load visual effect.
It feels like the page is loaded, the cookie read, then the page is resized.

Does anyone know how i could manage so that the page is loaded directly at the good state.

i have this script.js that is loaded via my theme.info

it contains

// Text Resizer - Permet de redimensionner le texte
	if($.cookie('TEXT_SIZE')) {
		$('html').addClass($.cookie('TEXT_SIZE'));
	}
	$('.resizer a').click(function() {
		var textSize = $(this).parent().attr('class');
		$('html').removeClass('small medium large').addClass(textSize);
		$.cookie('TEXT_SIZE',textSize, { path: '/', expires: 10000 });
		return false;
	});
	// CONTRAST
	$('.contrast a').click(function() {
    var textSize = $(this).parent().attr('class');
    $('html').removeClass('neutre accentue').addClass(textSize);
    $.cookie('TEXT_SIZE',textSize, { path: '/', expires: 10000 });
    return false;
  });

Thank you for your help