function jszj()
{
var i,nprice,tolprice;
var days = parseInt(document.frm2.yu_tianshu.options[document.frm2.yu_tianshu.selectedIndex].value);
var zuidi = parseInt(document.frm2.zuidi.value);
var zuigao = parseInt(document.frm2.zuigao.value);
if(days==30)	{
msgcount = zuidi*days/30;
}
if(days<30)
{
nprice=zuigao
msgcount=nprice
	for (i=2;i<days+1;i++)
	{
	nprice=nprice*(1-2/100);
	msgcount = msgcount+nprice;
	}
}
alert("您要租住"+days+"天，价格是每天"+Math.ceil(msgcount/days)+"元，总计租金是："+Math.ceil(msgcount/days)*days+"元，请提前准备好。谢谢查询！");
}