function addEvent(obj, evType, fn)
{ 
 if (window.addEventListener){ 
   obj.addEventListener(evType, fn, false); 
   return true; 
 } else if (window.attachEvent){ 
   var r = obj.attachEvent("on"+evType, fn); 
   return r; 
 } else { 
   return false; 
 } 
}
window.onload = function() {

    var as = document.getElementById("vsearchtabs").getElementsByTagName("a");

    for (var i = 0; i < as.length; i++) {
        if (as[i].id.length) {

            addEvent(as[i], "click", changeSearch);
            if (i == 0) {
                if (window.addEventListener) {
                    document.getElementById("submitButton").value = as[i].textContent;
                }
                else {
                    document.getElementById("submitButton").value = as[i].innerText;
                }
            }
        }
    }
}
function changeSearch()
{

	var as = document.getElementById("vsearchtabs").getElementsByTagName("a");

	var classPrefix = "";
	var callerID = ""
	if (window.addEventListener) { callerID = this.id;} else {callerID = window.event.srcElement.id;}
	document.getElementById("searchType").value = callerID;
	for(var i =0; i < as.length; i++)
	{
		if (i==0)
		{classPrefix = "first";}
		else
		{classPrefix = "";}

		if (as[i].id.length)
		{

			if (as[i].id == callerID) 
			{

			    
			    as[i].parentNode.className = classPrefix + "on";
			    if (window.addEventListener) {
			        document.getElementById("submitButton").value = as[i].textContent;
			    }
			    else {
			        document.getElementById("submitButton").value = as[i].innerText;
			    }
			    document.getElementById("searchType").value = as[i].id
			    
			} 
			else
			{
				as[i].parentNode.className = classPrefix+"off"; 
			}
		}
	}
}