//pops up large image when thumbnail is clicked
function img_popup(img_src, img_width, img_height) {
	window.open("http://www.neuro-insight.com.au/largeImg.php?imgname=" + img_src , "","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=" + img_width + ",height=" + img_height + ",left=20,top=20"); 
	return false;
}
	

//pops up large image when thumbnail is clicked
function pg_popup(pg_src, pg_width, pg_height) {
	window.open("http://www.neuro-insight.com.au/" + pg_src , "","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=" + pg_width + ",height=" + pg_height + ",left=20,top=20"); 
	return false;
}


//displays input to enter email for "email this page"	
function showhide(id){
	if (document.getElementById){
		obj = document.getElementById(id);
		if (obj.style.display == "none"){
			obj.style.display = "block";
		} else {
			obj.style.display = "none";
		}
	}
}