function  main() {
	self.location.href = "/main.html?code=1775294660";
}

function mainmenu1() {
	self.location.href ="/nbidding.html?code=1775294660";
}

function mainmenu2() {
	self.location.href ="/ncontract.html?code=1775294660";
}

function mainmenu3() {
	self.location.href ="/nchange.html?code=1775294660";
}

function mainmenu4() {
	self.location.href ="/nprice.html?code=1775294660";
}

function mainmenu5() {
	self.location.href ="/notice/pds_list.php?code=1775294660";
}