function newwindow (destination)
	{
	if (navigator.appName=="Netscape") features="??";
	features=", Height=300, Width=400"
	show=window.open(destination,"","menubar=1,scrollbars=1,resizable=1,status=1,width=450,height=250,screenx=30,screeny=30")
	}

	function hedge(f)
	{
	//systematic review
	if (document.SETTINGS.hedge[0].checked)
	{
	f.term.value=      "((((((meta analysis[PTYP] OR meta analy*[Text Word]) OR metanal*[Text Word]) OR metaanal*[Text Word]) OR ((quantitativ*[WORD] OR methodologic*[WORD] OR systematic*[WORD]) AND (overview*[WORD] OR review*[WORD]))) OR (review[PTYP] AND medline[Text Word]))";
	f.choseninfo.value="((((((meta analysis[PTYP] OR meta analy*[Text Word]) OR metanal*[Text Word]) OR metaanal*[Text Word]) OR ((quantitativ*[WORD] OR methodologic*[WORD] OR systematic*[WORD]) AND (overview*[WORD] OR review*[WORD]))) OR (review[PTYP] AND medline[Text Word])))";
//	f.term.value=      "((((((meta analysis[PTYP] OR meta analy*[Text Word]) OR metanal*[Text Word]) OR metaanal*[Text Word]) OR meta analysis[MESH]) OR (review[PTYP] AND medline[Text Word]))";
//	f.choseninfo.value="((((((meta analysis[PTYP] OR meta analy*[Text Word]) OR metanal*[Text Word]) OR metaanal*[Text Word]) OR meta analysis[MESH]) OR (review[PTYP] AND medline[Text Word]))";
	}
	//treatment
	if (document.SETTINGS.hedge[1].checked)
	{f.term.value="((((randomized controlled trial [PTYP]) OR drug therapy [SH]) OR therapeutic use [SH]) OR random* [Word])";
	f.choseninfo.value="((((randomized controlled trial [PTYP]) OR drug therapy [SH]) OR therapeutic use [SH]) OR random* [Word])";
	}
	//diagnosis
	if (document.SETTINGS.hedge[2].checked)
	{f.term.value="(((((((((sensitivity and specificity [MESH]) OR sensitivity [WORD]) OR diagnosis [SH]) OR pathology [MESH]) OR radiography [SH]) OR radionuclide imaging [SH]) OR ultrasonography [SH]) OR diagnostic use [SH]) OR specificity [WORD])";
	f.choseninfo.value="(((((((((sensitivity and specificity [MESH]) OR sensitivity [WORD]) OR diagnosis [SH]) OR patholo?????????Ÿ:?????????????††??????????????????????????????????????††?????????????????????????????????†????†?????†?????????†????????????†?????????????????†?†?????????????????????†??††???????????????††???????????????††††????????†††????????°?????????††??††††????????????????????????????††††††?????????????????††††????°?????????†††??†??†?†????????????gy [MESH]) OR radiography [SH]) OR radionuclide imaging [SH]) OR ultrasonography [SH]) OR diagnostic use [SH]) OR specificity [WORD])";
	}
	//prognosis
	if (document.SETTINGS.hedge[3].checked)
	{f.term.value="(((((cohort studies [MESH]) OR risk [MESH]) OR (odds [WORD] AND ratio* [WORD])) OR (relative [WORD] AND risk [WORD])) OR (case [WORD] AND control* [WORD]))";
	f.choseninfo.value="(((((cohort studies [MESH]) OR risk [MESH]) OR (odds [WORD] AND ratio* [WORD])) OR (relative [WORD] AND risk [WORD])) OR (case [WORD] AND control* [WORD]))";
	}
	//etiology
	if (document.SETTINGS.hedge[4].checked)
	{f.term.value="(((((((incidence [MESH]) OR mortality [MESH]) OR follow-up studies [MESH]) OR mortality [SH]) OR prognos* [WORD]) OR predict* [WORD]) OR course [WORD])";
	f.choseninfo.value="(((((((incidence [MESH]) OR mortality [MESH]) OR follow-up studies [MESH]) OR mortality [SH]) OR prognos* [WORD]) OR predict* [WORD]) OR course [WORD])";
	}
	//practice guidelines
	if (document.SETTINGS.hedge[5].checked)
//      from http://hiru.hirunet.mcmaster.ca/ebm/userguid/8_lit.htm
//	f.term.value="((((((guideline[Publication Type] OR practice guideline[Publication Type]) OR guideline*[Text Word]) OR recommend*[Text Word]) OR consensus[Text Word]) OR standards[Text Word]) OR parameter*[Text Word])";
	{f.term.value="(guideline[Publication Type] OR consensus development conference[Publication Type])";
	f.choseninfo.value="(guideline[Publication Type] OR consensus development conference[Publication Type])";
	}
	//no hedge
	if (document.SETTINGS.hedge[6].checked)
	{f.term.value=""};
	//limits
	if (document.SETTINGS.limit[0].checked)
	   {
	   if (!document.SETTINGS.hedge[6].checked)
		{
		f.term.value+=" AND "
		f.choseninfo.value+=" AND "
		};
	   f.term.value+="(((English [Language] OR Spanish [Language] BUTNOT Animal [MESH])) BUTNOT Letter [PTYP])";
	   //f.choseninfo.value+="(((English [Language] BUTNOT Animal [MESH])) BUTNOT Letter [PTYP])";
           }
	}