if (navigator.appName == "Netscape" || navigator.appName == "Microsoft Internet Explorer") brs = 1;
else brs = 2;

function  hiddenLayer(layr) {
	switch (brs) {
		case 1:
		eval('document.all[layr].style.visibility  = "hidden"')
		eval('document.all[layr].style.display  = "none"')
		break;
		case 2:
		eval('document.getElementById(layr).style.visibility  = "hidden"')
		eval('document.getElementById(layr).style.display  = "none"')
		break;
	}
}

function  showLayer(layr) {
	switch (brs) {
		case 1:
		eval('document.all[layr].style.visibility  = "visible"')
		eval('document.all[layr].style.display  = "block"')
		break;
		case 2:
		eval('document.getElementById(layr).style.visibility  = "visible"')
		eval('document.getElementById(layr).style.display  = "block"')
		break;
	}
}

function change_price_2rubl(el,rl) {
	switch (brs) {
		case 1:
		eval('document.all[el].style.visibility  = "hidden"')
		eval('document.all[el].style.display  = "none"')
		eval('document.all[rl].style.visibility  = "visible"')
		eval('document.all[rl].style.display  = "block"')
		break;
		case 2:
		eval('document.getElementById(el).style.visibility  = "hidden"')
		eval('document.getElementById(el).style.display  = "none"')
		eval('document.getElementById(rl).style.visibility = "visible"')
		eval('document.getElementById(rl).style.display  = "block"')
		break;
	}
}

function change_price_2euro(el,rl) {
	switch (brs) {
		case 1:
		eval('document.all[rl].style.visibility  = "hidden"')
		eval('document.all[rl].style.display  = "none"')
		eval('document.all[el].style.visibility  = "visible"')
		eval('document.all[el].style.display  = "block"')
		break;
		case 2:
		eval('document.getElementById(rl).style.visibility  = "hidden"')
		eval('document.getElementById(rl).style.display  = "none"')
		eval('document.getElementById(el).style.visibility = "visible"')
		eval('document.getElementById(el).style.display  = "block"')
		break;
	}
}

function change_price_currency(currency) {
	if (currency == 'euro') {
		for (i = 1; i <= 3000; i++) {
			euro = 'euro_' + i;
			rubl = 'rubl_' + i;
			change_price_2rubl(euro, rubl);
			cur_price = 'rubl';
		}
	} else {
		for (i = 1; i <= 3000; i++) {
			euro = 'euro_' + i;
			rubl = 'rubl_' + i;
			change_price_2euro(euro, rubl);
			cur_price = 'euro';
		}
	}
}

function rub(c) {
	c = Math.ceil(c*42);
	document.write(c);
}