function checkSearch(objInput, objEvent) {
    var blnIE;
	var blnNS;
	var agt = navigator.userAgent.toLowerCase();
	var is_major = parseInt(navigator.appVersion);
	blnIE = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1)
			&& (is_major >= 4) && (agt.indexOf("msie 4")== -1));
	blnNS = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
			&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
			&& (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)
			&& (is_major >= 4));

	var intKeycode;
	var objEnterKey = /[\x0D]/;
	if (blnIE) {
		intKeycode = objEvent.keyCode;
	}
	else if (blnNS) {
		intKeycode = objEvent.which;
	}
	else {
		return;
	}
	if (objEnterKey.test(String.fromCharCode(intKeycode))) {
		window.location = '/search/default.aspx?s=' + objInput.value;
		objEvent.returnValue = false;
	}
}