function add_favorites()
{
	var detect = navigator.userAgent.toLowerCase();
	//alert(detect);
	
	if(detect.indexOf('opera') + 1) alert("After you close this dialog please press CTRL+T to add to Favorites");
	else if(detect.indexOf('msie') + 1) window.external.AddFavorite(varsite,vardesc);
	else if(detect.indexOf('firefox') + 1) alert("After you close this dialog please press CTRL+D to add to Favorites");
	else if(detect.indexOf('netscape') + 1) alert("After you close this dialog please press CTRL+D to add to Favorites");
	else alert("Please use your browser's menu to add to Favorites");
}

function validate()
{
if( !document.searchform.searchtext.value || document.searchform.searchtext.value.length < 3) {
            document.searchform.searchtext.focus();
            alert('Search term too short, please try again');
            return false;
 }
}