/* Background opacity
	---------------------------------------------------------------- */
	var initPage = function() {

		var w = $('content').offsetWidth;
		var h = $('content').offsetHeight;

		//alert(h);

		$('contentBackground').setStyle('width', w+'px');
 		$('contentBackground').setStyle('height', h+'px');
		if(saf) {
			h+=170;
	 		// $('contentBackground').setStyle('height', h+'px');
		}
		$('contentBackground').setOpacity(.7);
	}

	/* Navigator
	---------------------------------------------------------------- */
	d = document;
	n = navigator;
	na = n.appVersion;
	nua = n.userAgent;
	cn = n.appCodeName;
	win = ( na.indexOf( 'Win' ) != -1 );
	mac = ( na.indexOf( 'Mac' ) != -1 );
	lin = ( nua.indexOf( 'Linux' ) != -1 );

	if ( !d.layers ){
		dom = ( d.getElementById );
		op = ( nua.indexOf( 'Opera' ) != -1 );
		konq = ( nua.indexOf( 'Konqueror' ) != -1 );
		saf = ( nua.indexOf( 'Safari' ) != -1 );
		moz = ( nua.indexOf( 'Gecko' ) != -1 && !saf && !konq);
		ie = ( d.all && !op );
		ie4 = ( ie && !dom );
		/*
		ie5x tests only for functionality. ( dom||ie5x ) would be default settings. 
		Opera will register true in this test if set to identify as IE 5
		*/
		ie5x = ( d.all && dom );
		ie5mac = ( mac && ie5x );
		ie5xwin = ( win && ie5x );
		// Ajout versions IE
		ieSP2 = ( nua.indexOf("SV1") != -1); 
	}