function goSearch() {
	if (document.formAdvSearch.R1[2].checked && document.formAdvSearch.R1[2].value=="V2") {		
		document.formAdvSearch.submit(); 		
		return true;
    }	
	else if (document.formAdvSearch.R1[0].checked && document.formAdvSearch.R1[0].value=="V3") {
		var searchURL = "http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Search&db=PubMed&term="+escape(document.formAdvSearch.query.value) 						
	}
	else if (document.formAdvSearch.R1[1].checked && document.formAdvSearch.R1[1].value=="V4") {
		var searchURL = "http://www.google.com/search?q="+escape(document.formAdvSearch.query.value) 				
	}	
	document.write('<frameset rows=28,* scrolling=no ><frame src=../include/topframe.asp><frame src='+searchURL+'></frameset>');	
	return false;
		
}

function clickGroup() {
//	var bCheck;
	var ref = document.formAdvSearch;
	//if (!ref.searchall.checked) return;	
	for (index in ref) if(index.indexOf('section') == 0) ref[index].checked = ref.searchall.checked;
}
function clickSingle() {
	var ref = document.formAdvSearch;
	var bCheck = true;
	for (index in ref) if(index.indexOf('section') == 0) bCheck &= ref[index].checked;
	ref.searchall.checked = bCheck;
}

function disableItems() {	
	var ref = document.formAdvSearch;
	
	if (ref.R1[0].checked || ref.R1[1].checked) {
	
		for (var i=0;i<ref.length;i++) {				
			if ((ref.elements[i].name.indexOf('query') == -1) && (ref.elements[i].name.indexOf('R1') == -1) && (ref.elements[i].name.indexOf('b2') == -1) && (ref.elements[i].name.indexOf('submit') == -1)) ref.elements[i].disabled = true;
		}	
	}
		
	return true;
}

function enableItems() {	
	var ref = document.formAdvSearch;
	
	for (var i=0;i<ref.length;i++) {				
		ref.elements[i].disabled = false;
	}	
	return true;
}