var checkdom = (document.createElement && document.getElementsByTagName);
var expandClass;

window.onload = init;

function init()
{
var ieVersion=0
if (navigator.appVersion.indexOf("MSIE")!=-1){
temp=navigator.appVersion.split("MSIE")
ieVersion=parseFloat(temp[1])
}

if (ieVersion<5.5 && !ieVersion==0) {
document.getElementById('logo0').innerHTML = 'you appear to be using a very old web browser (ie' + ieVersion + '). please upgrade';
return;
}

if (ieVersion==6 && !ieVersion==0) {
ie6hover();
}

if (!checkdom) return;

try {
  document.execCommand('BackgroundImageCache', false, true);
} catch(err) {}


}



function ie6hover() {
	var liatags = document.getElementById("navpopup").getElementsByTagName("li");
	for (var i=0; i<liatags.length; i++) {
		liatags[i].onmouseover=function() {
			this.className+="ie6over";
		}
		liatags[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("ie6over\\b"), "");
		}
	}
	var searchsubmita = document.getElementById("ajaxSearch_submit");
	if (searchsubmita) {	
			searchsubmita.onmouseover=function() {
			this.className="ie6over";
		}
      searchsubmita.onmouseout=function() {
			this.className=this.className.replace(new RegExp("ie6over\\b"), "");
		}
	}
	var searchsubmitb = document.getElementById("search_submit");
	if (searchsubmitb) {
			searchsubmitb.onmouseover=function() {
			this.className="ie6over";
		}
      searchsubmitb.onmouseout=function() {
			this.className=this.className.replace(new RegExp("ie6over\\b"), "");
		}
	}
}