var iversion = -1;
var imgLoaded = 0;
var lav = 0;
var ipass = 0;

function version() {
	if (iversion != -1) return iversion;
	if(navigator.appName.indexOf("Netscape") != -1){
		if (navigator.userAgent.indexOf("Mozilla/2.0") != -1)
			iversion = 2;
			else
				if (navigator.userAgent.indexOf("Mozilla/3") != -1)
					iversion = 3;
					else
						if (navigator.userAgent.indexOf("Mozilla/4") != -1){
							iversion = 4;
							lav = 1;
						}
					else
						if (navigator.userAgent.indexOf("Mozilla/5.0") != -1){
							iversion = 5;
							lav = 1;
						}
						else
							iversion = 1;
	}
	else {
		if(navigator.appName.indexOf("Internet Explorer") != -1){
			if (navigator.userAgent.indexOf("Mozilla/4") != -1){
				iversion = 4;
				lav = 1;
			}
			else
				iversion = 1;
		}
		else
			iversion = 1;
	}
	return iversion;
}

function init(param) {
	if (3<=version()) {
		if(document.images) {

I41On=new Image();
I41Off=new Image();
I41On.src=param+"/images/homeov.gif"
I41Off.src=param+"/images/home.gif"
I42On=new Image();
I42Off=new Image();
I42On.src=param+"/images/letterov.gif"
I42Off.src=param+"/images/letter.gif"
I43On=new Image();
I43Off=new Image();
I43On.src=param+"/images/plusov.gif"
I43Off.src=param+"/images/plus.gif"
I44On=new Image();
I44Off=new Image();
I44On.src=param+"/images/prom1ov.gif"
I44Off.src=param+"/images/prom1.gif"
I45On=new Image();
I45Off=new Image();
I45On.src=param+"/images/krovov.gif"
I45Off.src=param+"/images/krov.gif"
I46On=new Image();
I46Off=new Image();
I46On.src=param+"/images/monoov.gif"
I46Off.src=param+"/images/mono.gif"
I48On=new Image();
I48Off=new Image();
I48On.src=param+"/images/gidroov.gif"
I48Off.src=param+"/images/gidro.gif"

	imgLoaded=1;

			}
	}
}

function MouseOver(ImageName) {
	if (3<=version()) {
		if( imgLoaded== 0 ) return;
			document[ImageName].src=eval(ImageName + "On.src");
	}
}

function MouseOut(ImageName) {
	if (3<=version()) {
		if( imgLoaded== 0 ) return;
			document[ImageName].src=eval(ImageName + "Off.src");
	}
}