added jQuery functions for the search box label.

unl_theme/scripts/social.js

 WDN.jQuery(document).ready(function() {
-	WDN.jQuery('form#searchform label').css({display: "block");
+	WDN.jQuery('form#searchform label').css({display: "block"});
 	WDN.jQuery('form#searchform input#search_input').focus(function(){
-		if (WDN.jQuery('#wdn_search_form input#search_input').val() != "") {
-			WDN.jQuery(this).siblings("label").hide();
+		WDN.jQuery(this).siblings("label").hide();
+	});
+	WDN.jQuery('form#searchform input#search_input').blur(function(){
+		if (WDN.jQuery('form#searchform input#search_input').val() == "") {
+			WDN.jQuery(this).siblings("label").show();
 		};
-	})
-	}
-})
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+	});
+});
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