var listName	= ["name","cost","notes","screenshot","file"];
	var empty	= new RegExp(" ", "g");
	function check(frm)
	{
		var isOk = true;
		for(i=0; i<listName.length; i++)
		{
			var obj = frm.elements[ listName[i] ];
			var tmpStr = obj.value.replace(empty, "");

			if( "" == tmpStr ){
					isOk = false;
					alert("Необходимо заполнить все обязательные поля");
					break;
			}
		}
		return isOk;
	}

    function disp(id)
    {
            var obj = document.getElementById( id );

            if( obj.style.display == "" || obj.style.display == "block" )
                obj.style.display = "none";
            else
                obj.style.display = "block";
    }