function ctlSearch_OnClick()   
{   
var url;   
var theform = document.frmSearchBox;   

if (theform.keyword.value.length < 2)   
{   
alert('Please enter at least two characters.');   
theform.keyword.focus();   
}   
else   
{   
var iIndex = theform.ddlSearchType.selectedIndex;   
var sSearchType = theform.ddlSearchType.options[iIndex].value;   

// Version 2.7 release   
// 1. using default Domain, like "orientalmotor.thomasnet.com" in our sample   
// 2. using root category shortName, like "all-categories" in our sample   
url = "http://aventools.thomasnet-navigator.com/keyword/?&plpver=10&key=all&keycateg=100"   
url = url + "&SchType=" + sSearchType;   
url = url + "&keyword=" + encodeURI(theform.keyword.value);   
url = url + "&refer=" + encodeURI("http://" + document.location.hostname);   

document.location.href = url;   
}   
//alert (url);   
}