/*
To implement this script in your Web page, configure this file as
shown below, then put this file on your Web server.
Next, insert the following at the beginning of the section
of your Web page:
where [path] is the path to this file on your server.
Insert the following right after the tag:
Finally, insert the following where you wish the links to change the
text size to appear:
*/
/*
efa_increment = percentage by which each click increases/decreases size
efa_bigger = array of properties for 'increase font size' link
efa_reset = array of properties for 'reset font size' link
efa_smaller = array of properties for 'decrease font size' link
properties array format:
['before HTML',
'inside HTML',
'title text',
'class text',
'id text',
'name text',
'accesskey text',
'onmouseover JavaScript',
'onmouseout JavaScript',
'on focus JavaScript',
'after HTML'
]
*/
var efa_default = 100;
var efa_increment = 10;
var max_zoom = 120;
var min_zoom = 80;
var efa_reset = ['',
'
', //HTML to go before 'reset' link
'Schriftgröße normal', //HTML to go inside 'reset' anchor tag
'', //class attribute
'', //id attribute
'', //name attribute
'', //accesskey attribute
'', //onmouseover attribute
'', //onmouseout attribute
'', //onfocus attribute
' ' //HTML to go after 'reset' link
]
var efa_bigger = ['', //HTML to go before 'bigger' link
'
', //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_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
'<' + '/p>' //HTML to go after 'smaller' link
]
function Efa_Fontsize(increment,smaller,reset,bigger,def) {
this.w3c = (document.getElementById);
this.ms = (document.all);
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) {
this.name = "efa_fontSize";
this.cookieName = 'efaSize';
this.increment = increment;
this.def = def;
this.defPx = Math.round(16*(def/100))
this.base = 1;
this.pref = this.getPref();
this.testHTML = '
';
this.smallerLink = this.getLinkHtml(-1,smaller);
this.resetLink = this.getLinkHtml(0,reset);
this.biggerLink = this.getLinkHtml(1,bigger);
} else {
this.smallerLink = '';
this.resetLink = '';
this.biggerLink = '';
this.efaInit = new Function('return true;');
}
this.allLinks = this.smallerLink + this.resetLink + this.biggerLink;
}
Efa_Fontsize.prototype.efaInit = function() {
document.writeln(this.testHTML);
this.body = (this.w3c)?document.getElementsByTagName('body')[0].style:document.all.tags('body')[0].style;
this.efaTest = (this.w3c)?document.getElementById('efaTest'):document.all['efaTest'];
var h = (this.efaTest.clientHeight)?parseInt(this.efaTest.clientHeight):(this.efaTest.offsetHeight)?parseInt(this.efaTest.offsetHeight):999;
if (h < this.defPx) this.base = this.defPx/h;
this.body.fontSize = Math.round(this.pref*this.base) + '%';
}
Efa_Fontsize.prototype.getLinkHtml = function(direction,properties) {
var html = properties[0] + '' + properties[10];
}
Efa_Fontsize.prototype.getPref = function() {
var pref = this.getCookie(this.cookieName);
if (pref) return parseInt(pref);
else return this.def;
}
Efa_Fontsize.prototype.setSize = function(direction) {
this.pref = (direction)?this.pref+(direction*this.increment):this.def;
//maximum Zoom
if ( this.pref >= max_zoom ) {
this.pref = max_zoom;
this.setCookie(this.cookieName,this.pref);
this.body.fontSize = Math.round(this.pref*this.base) + '%';
}
//minimum Zoom
if ( this.pref <= min_zoom ) {
this.pref = min_zoom;
this.setCookie(this.cookieName,this.pref);
this.body.fontSize = Math.round(this.pref*this.base) + '%';
}
else {
this.setCookie(this.cookieName,this.pref);
this.body.fontSize = Math.round(this.pref*this.base) + '%';
}
}
Efa_Fontsize.prototype.getCookie = function(cookieName) {
var cookie = cookieManager.getCookie(cookieName);
return (cookie)?cookie:false;
}
Efa_Fontsize.prototype.setCookie = function(cookieName,cookieValue) {
return cookieManager.setCookie(cookieName,cookieValue);
}
var efa_fontSize = new Efa_Fontsize(efa_increment,efa_smaller,efa_reset,efa_bigger,efa_default);