sfHover = function() {
	if (!document.getElementsByTagName) return false;
	var sfEls = document.getElementById("nav").getElementsByTagName("li");

	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);
function st(a,b){if(a.value == b){a.value = '';}}
function ct(a,b){if(a.value == ''){a.value = b;}}
function sfb(){window.open('http://feedburner.google.com/fb/a/mailverify?uri=idea2site', 'popupwindow', 'scrollbars=yes,width=550,height=520');return true}

function SR_IsListSelected(el)
{
  for (var i = 0; i < el.length; i ++)
    if (el[i].selected ||
      el[i].checked)
      return i;
  return -1;
}
function SR_trim(f)
{
  return f.toString().replace(/^[ ]+/, '').replace(/[ ]+$/, '');
}
function SR_submit(f)
{
  f["field_email"].value = SR_trim(f["field_email"].value);
  f["field_name_first"].value = SR_trim(f["field_name_first"].value);
  if ((SR_focus = f["field_email"]) && f["field_email"].value.replace(/^[ ]+/, '').replace(/[ ]+$/, '').length < 1 || (SR_focus = f["field_name_first"]) && f["field_name_first"].value.replace(/^[ ]+/, '').replace(/[ ]+$/, '').length < 1) { alert("Укажите значения всех полей"); SR_focus.focus(); return false; }
  if (!f["field_email"].value.match("^[A-Za-z0-9][A-Za-z0-9\._-]*[A-Za-z0-9_]*@([A-Za-z0-9]+([A-Za-z0-9-]*[A-Za-z0-9]+)*\.)+[A-Za-z]+$")) { alert("Некорректный синтаксис email-адреса!"); f["field_email"].focus(); return false; } 
return true;
}