dom = (document.getElementById)? true : false;
ie4 = (document.all && !dom)? true : false;
function menuClick(elemId) {
	if (dom || ie4) {
    	var currElement = (dom)? document.getElementById(elemId) : document.all[elemId];
        currElement.style.display = (currElement.style.display == 'none')? 'block' : 'none';
        return false;
	} else return true;
}
function openpic(img, w, h){
	window.open('/pic/?'+img,'photo'+h+w,'height='+h+',width='+w+',resizable=yes,scrollbars=yes,menubar=no,status=no');
}
function win_open(url, w, h){
	window.open(url,'window'+h+w,'height='+h+',width='+w+',resizable=yes,scrollbars=yes,menubar=no,status=no');
}

function check_mail(frm){
	if((frm.email.value=='') || (frm.email.value=='ваш@e-mail')){
		alert('Вы не указали свой e-mail.');
		return false;
	}
}