window.onload = function(){
	document.getElementById("txtname").focus();
	 //调用函数
	var cookie_val = getCookies("loginTxtUserName");  
	if(null!=cookie_val){
		$("#txtname").val(cookie_val);  
	}
	document.getElementById("txtname").select();
}

function setCookie(name, value){
    var str = name + "=" + encodeURI(value);
    if(12 > 0){
	     var date = new Date();
	     var ms = 12*3600*1000;
	     date.setTime(date.getTime() + ms);
	     str += "; expires=" + date.toGMTString();
    }
    document.cookie = str;
}
function getCookies(name)
{
   var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
   if(arr != null) return unescape(arr[2]); return null;
}