// JavaScript Document
$(document).ready(function(){
var hrefValue = ($("a").filter(".bmg_disQueryButton")).attr("href");	
var disLink = ($("div.bmg_form_button_layout a").filter(".bmg_inactive_arrow_icon_wt"))
			$(disLink).attr({ 
          href: "javascript:;"
        });
$(".bmg_disQueryField").bind("keyup", function(){
if ($('.bmg_disQueryField').val() == '') {
  $(".bmg_disQueryButton").removeClass("bmg_arrow_icon_wt").addClass("bmg_inactive_arrow_icon_wt").attr({ 
          href: "javascript:;"
        });
 }
else if ($('.bmg_disQueryField').val() == "Enter keyword") {
  $(".bmg_disQueryButton").removeClass("bmg_arrow_icon_wt").addClass("bmg_inactive_arrow_icon_wt").attr({ 
          href: "javascript:;"
        });
 }
else {
  $(".bmg_disQueryButton").addClass("bmg_arrow_icon_wt").removeClass("bmg_inactive_arrow_icon_wt").attr({ 
          href: hrefValue
        });
 }
});

 });