function show_hidden(el_id){
	var el = document.getElementById('prod_id_'+ el_id);
	marginBottom = parseFloat(el.style.marginBottom);
	
	if (marginBottom == -111)		up_id = setInterval("up("+el_id+")", 10);
	else 					doun_id = setInterval("doun("+el_id+")", 10);
}
	
function up(el_id){
	var el = document.getElementById('prod_id_'+ el_id);
	var marginBottom = parseFloat(el.style.marginBottom);		
	if (marginBottom < -10){		
		marginBottom += 10;							
		el.style.marginBottom = marginBottom + 'px';						
	}else{		
		clearInterval(up_id);                       		
	}			                            	
}	
	
function doun(el_id){
	var el = document.getElementById('prod_id_'+ el_id);
	var marginBottom = parseFloat(el.style.marginBottom);
	if (marginBottom > -111){
		marginBottom -= 10;							
		el.style.marginBottom = marginBottom + 'px';
	}else{		
		clearInterval(doun_id);
	}			
}	



// Многоязычность
function changeLanguage(eValue) {
	//Нет параметра языка
	if (getVarValueFromURL(document.location.search, "lng") == null) {
		var separator = "";
		if (document.location.search == "") {
			separator = "?";
		}
		else {
			separator = "&";
		}
		document.location.href = document.location.href + separator + "lng=" + eValue;
	}
	//Есть параметр языка
	else {
		url = document.location.href;
		valueLng = getVarValueFromURL(document.location.search, "lng");
		lnggg = "lng=".concat(valueLng.toString());
		startPart = url.substring(0, url.indexOf(lnggg));
		endPart = url.substring(url.indexOf(lnggg) + lnggg.length);
		document.location.href = startPart + "lng=" + eValue + endPart;
	}
	
}
function getVarValueFromURL(url, varName) {
	var query = url.substring(url.indexOf('?') + 1);
	var vars = query.split("&");
	for (var i=0; i < vars.length; i++) {
		var pair = vars[i].split("=");
		if (pair[0] == varName) {
			return pair[1];
		}
	}
	return null;
}