function search() {
	text = document.all.req.value;
	location.href='http://www.med.univaq.it/medicina/searchEngine/search.php?search='+text;
}		

function checkEnter(e){
	var characterCode
	 if(e && e.which){
	 e = e
	 characterCode = e.which
	 }
	 else{
	 e = event
	 characterCode = e.keyCode
	 }	 
	 if(characterCode == 13){
 	 search()
	 }					
}