function strReplace(s, r, w)
{
	return s.split(r).join(w);
}

function addslashes(str) 
{
	str=str.replace(/\'/g,'\\\'');
	str=str.replace(/\"/g,'\\"');
	str=str.replace(/\\/g,'\\\\');
	str=str.replace(/\0/g,'\\0');
	return str;
}
function stripslashes(str) 
{
	str=str.replace(/\\'/g,'\'');
	str=str.replace(/\\"/g,'"');
	str=str.replace(/\\\\/g,'\\');
	str=str.replace(/\\0/g,'\0');
	return str;
}

function trim(str)
{ 
	str = str.replace(/ /g, '');
	return str.replace(/(^\s+)|(\s+$)/g, '');
}


function getObj(nid)
{
	if (document.getElementById(nid))
	{
		return document.getElementById(nid);
	}
	else
	{
		return false;
	}
}

function getObjValue(nid)
{
	var ret = "";
	if (document.getElementById(nid).type == "checkbox")
	{
		if (document.getElementById(nid).checked == true)
		{
			ret = document.getElementById(nid).value;
		}
	}
	else
	{
		ret = document.getElementById(nid).value;
	}
	return ret;
}

function getValFromUrl(url, varname)
{
	var vars = new Array();
	vars = url.split("&");
	var ret = "error";

	for (i = 0; i < vars.length; i++)
	{
		var value = new Array();
		value = vars[i].split("=");
		if (value[0] == varname)
		{
			ret = value[1];
		}
	}
	return ret;	
}


function makeRequest(url)
{
	var http_request = false;

	if(document.all)
	{
		var yOffset = document.documentElement.scrollTop;
	}
	else
	{
		var yOffset = window.pageYOffset;
	}

	if (window.XMLHttpRequest) 
	{ // Mozilla, Safari, ...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) 
		{
			http_request.overrideMimeType('text/html');
			// Читайте ниже об этой строке
		}
	} 
	else if (window.ActiveXObject) 
	{ // IE
		try 
		{
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (e) 
		{
			try 
			{
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch (e) 
			{
			}
		}
	}

	if (!http_request) 
	{
		alert('Unfortunatly your browser doesn\'t support XMLHTTP.');
		return false;
	}

	http_request.onreadystatechange = function() 
	{ 
		if (http_request.readyState == 4)
		{
            if (http_request.status == 200)
			{
				if (getValFromUrl(http_request.responseText, "answer") == "addToCart")
				{
					if (getValFromUrl(http_request.responseText, "error") != "")		//Возникли ошибки
					{
						alert(getValFromUrl(http_request.responseText, "error"));
					}
					else
					{
						alert("Товар добавлен в корзину");
						
						var newHTML = getValFromUrl(http_request.responseText, "newcontent");
						newHTML = strReplace(newHTML, "::ravno::", "=");
						newHTML = strReplace(newHTML, "::amp::", "&");
						document.getElementById('cartInfo').innerHTML = newHTML;
						
						if (document.getElementById('cartTable'))
						{
							newHTML = getValFromUrl(http_request.responseText, "newtable");
							newHTML = strReplace(newHTML, "::ravno::", "=");
							newHTML = strReplace(newHTML, "::amp::", "&");
							document.getElementById('cartTable').innerHTML = newHTML;
						}
					}
				}
				if (getValFromUrl(http_request.responseText, "answer") == "delFromCart")
				{
					if (getValFromUrl(http_request.responseText, "error") != "")		//Возникли ошибки
					{
						alert(getValFromUrl(http_request.responseText, "error"));
					}
					else
					{
						var newHTML = getValFromUrl(http_request.responseText, "newcontent");
						newHTML = strReplace(newHTML, "::ravno::", "=");
						newHTML = strReplace(newHTML, "::amp::", "&");
						document.getElementById('cartInfo').innerHTML = newHTML;
						
						if (document.getElementById('cartTable'))
						{
							newHTML = getValFromUrl(http_request.responseText, "newtable");
							newHTML = strReplace(newHTML, "::ravno::", "=");
							newHTML = strReplace(newHTML, "::amp::", "&");
							document.getElementById('cartTable').innerHTML = newHTML;
						}
					}
				}
				if (getValFromUrl(http_request.responseText, "answer") == "clearCart")
				{
					if (getValFromUrl(http_request.responseText, "error") != "")		//Возникли ошибки
					{
						alert(getValFromUrl(http_request.responseText, "error"));
					}
					else
					{
						var newHTML = getValFromUrl(http_request.responseText, "newcontent");
						newHTML = strReplace(newHTML, "::ravno::", "=");
						newHTML = strReplace(newHTML, "::amp::", "&");
						document.getElementById('cartInfo').innerHTML = newHTML;
						
						if (document.getElementById('cartTable'))
						{
							newHTML = getValFromUrl(http_request.responseText, "newtable");
							newHTML = strReplace(newHTML, "::ravno::", "=");
							newHTML = strReplace(newHTML, "::amp::", "&");
							document.getElementById('cartTable').innerHTML = newHTML;
						}
					}
				}
				if (getValFromUrl(http_request.responseText, "answer") == "confirmOrder")
				{
					if (getValFromUrl(http_request.responseText, "error") != "")		//Возникли ошибки
					{
						alert(getValFromUrl(http_request.responseText, "error"));
					}
					else
					{
						document.getElementById('cartTable').innerHTML = "Спасибо за заказ. Мы в ближайшее время свяжемся с Вами.";
					}
				}
			}
			else
			{
				alert('Connection wasn\'t successful.');
			}
		}
	};


	//************** ОБРАБАТЫВАЕМ КЛИКИ
	var args = "";
	for (var i = 0; i < arguments.length; i++)
	{
		args += "&p" + i + "=" + arguments[i];
	}
	
	http_request.open('POST', "/getAnswer.php", true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Connection", "close");	
	http_request.send("q=" + url + args);
	
	
	
}


//*****************************************
function numericCheck(e, obj, max)
{
	var key = (typeof e.charCode == 'undefined' ? e.keyCode : e.charCode);
	if (e.ctrlKey || e.altKey || key < 32 || key == 60 || key == 62)
	{
    	return true;
	}
	
	key = String.fromCharCode(key);
	
	if (obj.value.length < max)
	{ 
		//return /[\d+\.+\,+\-]/.test(key);
		return /[\d]/.test(key);
	}
	else
	{
		return false;
	}	
}




function clickFilter()
{
	var fields = document.getElementsByTagName('input');
	for (var i = 0; i < fields.length; i++)
	{
		if (fields[i].getAttribute("rel") == "filter")
		{
			//fields[i].disabled = true;
		}
	}
}


function clearFilter()
{
	var fields = document.getElementsByTagName('input');
	for (var i = 0; i < fields.length; i++)
	{
		if (fields[i].getAttribute("rel") == "filter")
		{
			fields[i].checked = false;
		}
	}
	
	getObj("filterForm").submit();
}


function insert_amount(id)
{
	var amount = prompt('Введите количество:', '');
	if (amount)
	{
		makeRequest('addToCart', id, amount);
	}
}