function baidusearch () {
var wq=document.getElementsByName("wq")[0].value;
var link="http://www.baidu.com/s?wd=site:lanhan.cn+"+wq;
window.open(link); 
}

function date2week(vmydate){
var weekDay = ["周日", "周一", "周二", "周三", "周四", "周五", "周六"];
var dateStr = vmydate;
dateStr=dateStr.replace("年","-");
dateStr=dateStr.replace("月","-");
dateStr=dateStr.replace("日","");
dateStr=dateStr.substring(0,10);
var myDate = new Date(Date.parse(dateStr.replace(/-/g, "/"))); 
document.write(weekDay[myDate.getDay()]);
}