function showBlock(name)
{
    var obj, obj_arr = new Array('quicknav', 'cityselect', 'authorization');

    for (i=0; i<obj_arr.length; i++) {
        if (obj = document.getElementById(obj_arr[i])) {
            if (name == obj_arr[i]) {
                if (obj.style.visibility == 'visible') {
                    obj.style.visibility = 'hidden';
                    if (obj_arr[i] == 'authorization') {
                        var login_obj = document.getElementById('login');
                        login_obj.unfocus();
                    }
                    unclipSelect('layer1');
                    unclipSelect('layer2');
                } else {
                    obj.style.display = 'block';
                    obj.style.visibility = 'visible';
                    if (obj_arr[i] == 'authorization') {
                        var login_obj = document.getElementById('login');
                        login_obj.focus();
                        unclipSelect('layer1');
                        unclipSelect('layer2');
                    }
                    if (obj_arr[i] == 'cityselect') {
                        clipSelect('layer1', '44');
                        clipSelect('layer2', '69');
                    }
                }
            } else {
                obj.style.visibility = 'hidden';
            }
        }
    }

    return false;
}

function clipSelect (name, width) {
    if (clipObj = document.getElementById(name)) {
        clipObj.style.clip = 'rect(auto '+width+'px auto auto)';
    }
}

function unclipSelect (name) {
    if (clipObj = document.getElementById(name)) {
        clipObj.style.clip = 'rect(auto auto auto auto)';
    }
}

/*window.onload = function () {
var div = document.getElementById('menu_globalmain');
var elems = div.getElementsByTagName('li');
onmouseover.elems[0].style.border="1px solid #000";
}*/
function menu_ie(m) {
	//alert(m.childNodes[1].tagName)
//m.getElementsByTagName('ul')[0].style.border='1px solid #000';
var element=document.getElementById("menu_globalmain"); //подставить id Вашего элемента
//alert(m);
//alert(element);
var list=m.childNodes;
//for (var i=0; i<list.length; i++) {
//if (1==list[i].nodeType)
list[1].childNodes[0].childNodes[0].childNodes[0].childNodes[0].childNodes[0].className="act_m";
//}
}

function menu_out_ie(m) {
var list=m.childNodes;
list[1].childNodes[0].childNodes[0].childNodes[0].childNodes[0].childNodes[0].className="";
}
/*
window.onresize = function () {
a=window.outerWidth;
if(!window.outerWidth) {
a=document.body.clientWidth;
}
if(a>1020) {
x=(a-512-507)/2;
document.getElementById("menu_globalmain").style.marginLeft = x+"px"; 
}
}*/