function poppic(url,w,h) {
	window.open(url,"",'status=0,scrollbars=1,width='+w+',height='+h);
}

// till: "/objects/How_it_works/layout.i"
function show_img(id) {
	if(document.getElementById){
		document.getElementById("blockDivImg"+id).style.visibility = "visible";
	}else{
		if (ns4) document.layers["blockDivImg"+id].visibility = "show"
		else document.all["blockDivImg"+id].style.visibility = "visible"
	}
}	
function hide_img(pos,maxpos) {
	for (var i = 1; i <= maxpos; i++) {
		if(i != pos) {
			if(document.getElementById){
				document.getElementById("blockDivImg"+i).style.visibility = "hidden";
			}else{
				if (ns4) document.layers["blockDivImg"+i].visibility = "hide"
				else document.all["blockDivImg"+i].style.visibility = "hidden"
			}
		}
	}
}
function howITinner(string) {
	document.getElementById('blockDivInfoHow').innerHTML = string;
}
function swapImg(name,link) {
	var n=navigator.appName;
	var v=parseInt(navigator.appVersion);
	var browsok=((n=="Netscape")&&(v>=3));
	var browsok2=((n=="Microsoft Internet Explorer")&&(v>=4));
	if ((browsok)||(browsok2)) {
		if(document.images) {
			document.images[name].src=link;
		}
	}
}