//---------- 搜索表单验证
jquery( function() {
	var searchtxt = jquery("#search input:text[name='sk']").val();
	jquery("#search").submit( function() {
		var s_searchtxt = jquery(this).find("input:text[name='sk']").val();
		var ridarr = jquery(".selected").attr("id").split("_");
		var rid=ridarr.pop();
		if ( s_searchtxt == "" || s_searchtxt == searchtxt || s_searchtxt == "请输入搜索关键词" || s_searchtxt == "请输入搜索关键词！" ) {
			jquery(this).find("input:text[name='sk']").val("请输入搜索关键词！");
			return false;
		}
		if(rid==0)
		{
			alert("请选择搜索栏目");
			return false;
		}
	} ).find("input:text[name='sk']").focus( function() {
		var s_searchtxt = jquery(this).val();
		if ( s_searchtxt == searchtxt || s_searchtxt == "请输入搜索关键词" || s_searchtxt == "请输入搜索关键词！" ) {
			jquery(this).val("");
		}
	} ).blur( function() {
		var s_searchtxt = jquery(this).val();
		if ( s_searchtxt == "" || s_searchtxt == "请输入搜索关键词" || s_searchtxt == "请输入搜索关键词！" ) {
			jquery(this).val(searchtxt);
		}
	} );
} );