into the testHTML property
this.testHTML = '
';
// get the HTML for the 'bigger' link
this.biggerLink = this.getLinkHtml(1,bigger);
// get the HTML for the 'reset' link
this.resetLink = this.getLinkHtml(0,reset);
// get the HTML for the 'smaller' link
this.smallerLink = this.getLinkHtml(-1,smaller);
// set up an onlunload handler to save the user's font size preferences
} else {
// set the link html properties to an empty string so the links don't show up
// in unsupported browsers
this.biggerLink = '';
this.resetLink = '';
this.smallerLink = '';
// set the efaInit method to a function that only returns true so
//we don't get errors in unsupported browsers
this.efaInit = new Function('return true;');
}
// concatenate the individual links into a single property to write all the HTML
// for them in one shot
this.allLinks = this.smallerLink + this.resetLink + this.biggerLink;
}
// check the user's current base text size and adjust as necessary
Efa_Fontsize.prototype.efaInit = function() {
// write the test
into the document
document.writeln(this.testHTML);
// get a reference to the body tag
this.body = (this.w3c)?document.getElementsByTagName('body')[0].style:document.all.tags('body')[0].style;
// get a reference to the test element
this.efaTest = (this.w3c)?document.getElementById('efaTest'):document.all['efaTest'];
// get the height of the test element
var h = (this.efaTest.clientHeight)?parseInt(this.efaTest.clientHeight):(this.efaTest.offsetHeight)?parseInt(this.efaTest.offsetHeight):999;
// check that the current base size is at least as large as the browser default (16px) adjusted
// by our base percentage; if not, divide 16 by the base size and multiply our base multiplier
// by the result to compensate
if (h < this.defPx) this.base = this.defPx/h;
// now we set the body font size to the appropriate percentage so the user gets the
// font size they selected or our default if they haven't chosen one
this.body.fontSize = Math.round(this.pref*this.base) + '%';
}
// construct the HTML for the links; we expect -1, 1 or 0 for the direction, an array
// of properties to add to the
tag and HTML to go before, after and inside the tag
Efa_Fontsize.prototype.getLinkHtml = function(direction,properties) {
// declare the HTML variable and add the HTML to go before the link, the start of the link
// and the onclick handler; we insert the direction argument as a parameter passed to the
// setSize method of this object
var html = properties[0] + '' + properties[10];
}
// get the saved preferences out of the cookie, if any
Efa_Fontsize.prototype.getPref = function() {
// get the value of the cookie for this object
var pref = this.getCookie(this.cookieName);
// if there was a cookie value return it as a number
if (pref) return parseInt(pref);
// if no cookie value, return the default
else return this.def;
}
// change the text size; expects a direction parameter of 1 (increase size), -1 (decrease size)
// or 0 (reset to default)
Efa_Fontsize.prototype.setSize = function(direction) {
// Geändert tegut... Mark Seng
if (((this.pref<=85) && (direction==1)) || ((this.pref>=75) && (direction==-1)) || direction==0)
{
this.pref = (direction)?this.pref+(direction*this.increment):this.def;
this.setCookie(this.cookieName,this.pref);
// set the text size
this.body.fontSize = Math.round(this.pref*this.base) + '%';
}
}
// get the value of the cookie with the name equal to a string passed as an argument
Efa_Fontsize.prototype.getCookie = function(cookieName) {
var cookie = cookieManager.getCookie(cookieName);
return (cookie)?cookie:false;
}
// set a cookie with a supplied name and value
Efa_Fontsize.prototype.setCookie = function(cookieName,cookieValue) {
return cookieManager.setCookie(cookieName,cookieValue);
}
var efa_fontSize = new Efa_Fontsize(efa_increment,efa_bigger,efa_reset,efa_smaller,efa_default);
', //HTML to go inside 'bigger' anchor tag
'Schrift grösser stellen', //title attribute
'', //class attribute
'', //id attribute
'', //name attribute
'', //accesskey attribute
'', //onmouseover attribute
'', //onmouseout attribute
'', //onfocus attribute
' ' //HTML to go after 'bigger' link
]
var efa_reset = ['', //HTML to go before 'bigger' link
' 
', //HTML to go inside 'bigger' anchor tag
'Schrift normal stellen', //title attribute
'', //class attribute
'', //id attribute
'', //name attribute
'', //accesskey attribute
'', //onmouseover attribute
'', //onmouseout attribute
'', //onfocus attribute
' ' //HTML to go after 'bigger' link
]
var efa_smaller = ['',
'
', //HTML to go before 'smaller' link
'Schrift kleiner stellen', //HTML to go inside 'smaller' anchor tag
'', //class attribute
'', //id attribute
'', //name attribute
'', //accesskey attribute
'', //onmouseover attribute
'', //onmouseout attribute
'', //onfocus attribute
'' //HTML to go after 'smaller' link
]
function Efa_Fontsize(increment,bigger,reset,smaller,def) {
// check for the W3C DOM
this.w3c = (document.getElementById);
// check for the MS DOM
this.ms = (document.all);
// get the userAgent string and normalize case
this.userAgent = navigator.userAgent.toLowerCase();
this.isOldOp = ((this.userAgent.indexOf('opera') != -1)&&(parseFloat(this.userAgent.substr(this.userAgent.indexOf('opera')+5)) <= 7));
if ((this.w3c || this.ms) && !this.isOldOp && !this.isMacIE) {
// set the name of the function so we can create event handlers later
this.name = "efa_fontSize";
// set the cookie name to get/save preferences
this.cookieName = 'efaSize';
// set the increment value to the appropriate parameter
this.increment = increment;
//default text size as percentage of user default
this.def = def;
//intended default text size in pixels as a percentage of the assumed 16px
this.defPx = Math.round(16*(def/100))
//base multiplier to correct for small user defaults
this.base = 1;
// call the getPrefs function to get preferences saved as a cookie, if any
this.pref = this.getPref();
// stuff the HTML for the test