function ifChn(b,id,html){

        if (b){
                 var obj=document.getElementById(id);
                 if(obj){
                  var parent=obj.parentNode;
                  var odiv=document.createElement('span');
                  parent.replaceChild(odiv, obj);
                  odiv.innerHTML=html;
                 }
        }



}


function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}


function GetCookie (name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
	var j = i + alen;
	if (document.cookie.substring(i, j) == arg)
	return getCookieVal (j);
	i = document.cookie.indexOf(" ", i) + 1;
	if (i == 0)
	break;
	}
	return null;
}


function SetCookie (name, value, period) {
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	now= new Date();
	var expires = (period==null) ? "" : new Date(now.getMonth()+1+'-'+(now.getDate()+period)+'-'+now.getYear()+" "+now.getHours()+":"+now.getMinutes()+":"+now.getSeconds());
	var path = (3 < argc) ? argv[3] : null;
	var domain = (4 < argc) ? argv[4] : null;
	var secure = (5 < argc) ? argv[5] : false;


	document.cookie = name + "=" + escape (value) +
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +

	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
	((path == null) ? "" : ("; path=" + path)) +
	((domain == null) ? "" : ("; domain=" + domain)) +
	((secure == true) ? "; secure" : "");
}


function CheckForm (Frm) {
var i;
for (i=0; i<Frm.length; i++) {
         k=Frm.elements[i].value;
         if ((Frm.elements[i].value == "" )&&(Frm.elements[i].id!="")) {
                  alert('Пожалуйста, введите ' + Frm.elements[i].id);
                  Frm.elements[i].focus();
                  return false;
                  }
         else
                 if ((k.length<2)&&(Frm.elements[i].id!=""))
                 {
                  alert(Frm.elements[i].id + ' введено некорректно.');
                  Frm.elements[i].focus();
                  return false;

                 }

         }
return true;
}