var DefaultTextSize;
DefaultTextSize = 1;

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			if (oldonload) {
				oldonload();
			}
			func();
		}
	}
}

function handler(){
	elem = document.getElementById('diminuerTexte');
	elem.onclick = function(){
		changerTaille(-0.1);
	}
	
	elem = document.getElementById('augmenterTexte');
	elem.onclick = function(){
		changerTaille(0.1);
	}
	
	elem = document.getElementById('imprimer');
	elem.onclick = function(){
		window.focus();
		window.print();
	}
}

function changerTaille(modif) {
	DefaultTextSize = DefaultTextSize + modif;
	document.getElementById("base").style.fontSize = DefaultTextSize + "em";
}


addLoadEvent(handler);