function doit () {
document.theForm.page_name.value = location.href.substring(location.href.lastIndexOf("/")+1, location.href.lastIndexOf(".")); 
document.theForm.student_name.value = StrReplace(document.theForm.student_name.value,"'","");
document.theForm.student_name.value = StrReplace(document.theForm.student_name.value,'"','');
document.theForm.student_age.value = StrReplace(document.theForm.student_age.value,"'","");
document.theForm.student_age.value = StrReplace(document.theForm.student_age.value,'"','');
document.theForm.student_country.value = StrReplace(document.theForm.student_country.value,"'","");
document.theForm.student_country.value = StrReplace(document.theForm.student_country.value,'"','');
}

function StrReplace(inStr, removeStr, replaceStr)  {
	inStr = inStr.split(removeStr).join(replaceStr);
	return inStr;
}