// Used by go() function below
function trim(a){
	var nonSpace=false;
	a = unescape(a);

	for(j=0;j<a.length;j++)
	{
		if(a.charAt(j)!=' ')
		{
			nonSpace=true;
		}
	}
	if (nonSpace==false)
	{
		a=""
	}
	return a;
}

// Function to check empty search
function go() {
	var searchBoxValue;
	if (document.all) {
		searchBoxValue = escape(document.all.search.searchbox.value);
	} else {
		searchBoxValue = escape(document.search.searchbox.value);
	}

	if ((trim(searchBoxValue)=="") || (searchBoxValue=="Enter%20keyword")) {
		alert('Please enter a keyword to continue');
	} else {
   		top.window.location.href = "/cometbrowse/quickSearch.do?N=108&Ntk=all&Ntx=mode+matchallany&Nty=1&Ntt=" +searchBoxValue +"&zone=eCometZone";
   	}
}