/**
 * 监控 回车键
 */
$(document).keydown(function(event){
		var keyStr;
		if($.browser.msie){
			keyStr = event.keyCode;
		} else {
			keyStr = event.which;
		}
		if(keyStr == 13)
		{
				if (document.getElementById("currentType")!=null)
				{
					if ($("#currentType").val()>=0)
						searchInfo(1);
				}else if (document.getElementById("messageBox")!=null)
					sendShortMessage();
				else if ($("#username")!=null&&$("#username").length>0)
					userLoginCheck();//登陆页
		}
})