function $(El) 
{
	return document.getElementById(El);
}

function showRegion(region_name)
{
	var Array = $('map_desc').getElementsByTagName('div');
	for (i = 0; i < Array.length; i++) {
		Array[i].style.display = '';
	}
	if(region_name != 'kazan' && region_name != 'barnaul' && region_name != 'primore' && region_name != 'krasnodar' && region_name != 'rostov-on-don' && region_name != 'volgograd') {
		$('map').className = region_name;
	}
	$('map_desc_' + region_name).style.display = 'block';
}

function MM_preloadImages()
{
	var d = document;
	if (d.images){
		if (!d.MM_p) {
			d.MM_p = new Array();
		}
		var i,j = d.MM_p.length;
		var a = MM_preloadImages.arguments;
		for (i = 0; i < a.length; i++) {
			if (a[i].indexOf("#")!=0) {
				d.MM_p[j] = new Image;
				d.MM_p[j++].src = a[i];
			}
		}
	}
	return true;
}

window.onload = function() 
{
	MM_preloadImages(
		'i/map_tver.gif',
		'i/map_kirov.gif',
		'i/map_samara.gif',
		'i/map_saratov.gif',
		'i/map_nn.gif',
		'i/map_center.gif'
	);
	default_region = 'center';
	showRegion(default_region);
}