// JavaScript Document

function pulisciBox(par) {
	if (document.forms[0].query.value == par) {
		document.forms[0].query.value = "";
	}
}


function setFontSize(size) {
	var body = document.getElementsByTagName('body')[0];
	var percentuale = "100%"; // default
	if (size == 1) percentuale = "100%";
	if (size == 2) percentuale = "120%";
	if (size == 3) percentuale = "140%";
	body.style.fontSize = percentuale;
}

function css() {
	var 
		ua=navigator.userAgent.toLowerCase(),
		is=function(t){ return ua.indexOf(t) != -1; },
		h=document.getElementsByTagName('html')[0],
		b=(!(/opera|webtv/i.test(ua))&&/msie (\d)/.test(ua))?('ie ie'+RegExp.$1):is('gecko/')? 'gecko':is('opera/9')?'opera opera9':/opera (\d)/.test(ua)?'opera opera'+RegExp.$1:is('konqueror')?'konqueror':is('applewebkit/')?'webkit safari':is('mozilla/')?'gecko':'',
		os=(is('x11')||is('linux'))?' linux':is('mac')?' mac':is('win')?' win':'';
	var c=b+os+' js';
        if (b == "ie ie7"){
           document.write("<link rel=\"stylesheet\" href=\"/css/schermo_ie7.css\" />");
        }
	else {
           document.write("<link rel=\"stylesheet\" href=\"/css/schermo.css\" />");
        }

	h.className += h.className?' '+c:c;
}