function locChange() {
lin="";
lin=document.postform.MEN.options[document.postform.MEN.options.selectedIndex].value;
location.href=lin;
parent.location.href=lin;
}
function goBack()
{  
 history.go(-1);
} 
function goHome()
{
var URL = window.parent.location.href;
var result = unescape(URL.substring(0,(URL.lastIndexOf("/")) + 1)) + "main.html";
alert(result)
location.href=result;
}