var Zoom = new Zoom_System();

function Zoom_System(){
Zoom_System.prototype.findobj = function(obj){
this.parent = window.document;
if(this.parent.getElementById && this.parent.getElementById(obj)){return this.parent.getElementById(obj);}
return null;
}
Zoom_System.prototype.fontsize = function(obj,gui){
var fontcont = this.findobj(obj);
if(gui<0){var fsize=-1;} else {var fsize=1;}
var resize = parseInt(fontcont.style.fontSize) + fsize;
if(resize >= 9 && resize < 12){
fontcont.style.fontSize = resize + 'pt';
}
return false;
}}