var x = 1;
var wait = 500;
var pics = new Array();

var btn = {
    init : function() {
        if (!document.getElementById || !document.createElement || !document.appendChild) return false;
        as = btn.getElementsByClassName('Button(.*)');

        
        for (i=0; i<as.length; i++) {
            if ( as[i].tagName == "INPUT" && ( as[i].type.toLowerCase() == "submit" || as[i].type.toLowerCase() == "button" ) ) {
                var pPrev = document.createElement("img")
                pPrev.setAttribute('class','Button_prev');
                pPrev.src='/files/basis/bu_li.png';
                var pNext = document.createElement("img");
                pNext.setAttribute('class','Button_next');
                pNext.src='/files/basis/bu_re.png';

                as[i].parentNode.insertBefore(pPrev, as[i]);
                as[i].parentNode.insertBefore(pNext, as[i].nextSibling);
            }
            else { return false };
        }
        
    },
    addEvent : function(obj, type, fn) {
        if (obj.addEventListener) {
            obj.addEventListener(type, fn, false);
        }
        else if (obj.attachEvent) {
            obj["e"+type+fn] = fn;
            obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
            obj.attachEvent("on"+type, obj[type+fn]);
        }
    },
    getElementsByClassName : function(className, tag, elm) {
        var testClass = new RegExp("(^|\s)" + className + "(\s|$)");
        var tag = tag || "*";
        var elm = elm || document;
        var elements = (tag == "*" && elm.all)? elm.all : elm.getElementsByTagName(tag);
        var returnElements = [];
        var current;
        var length = elements.length;
        for(var i=0; i<length; i++){
            current = elements[i];
            if(testClass.test(current.className)){
                returnElements.push(current);
            }
        }
        return returnElements;
    }
}



btn.addEvent(window,'load', function() { btn.init();} );


//
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
//
function addLoadEvent(func)
{	
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
    	window.onload = func;
	} else {
		window.onload = function(){
		oldonload();
		func();
		}
	}
}