var img_color = 0;
	
function search_book()
{
	if (document.searchForm.ricerca.value == '')	
	{
		alert("Inserire almeno un elemento di ricerca valido.");
		return;			
	}
	else
	{				
		var test;
		test = false;
		test = test || testForm (document.searchForm.ricerca.value);
				
		if (test)
		{	
			switch (document.searchForm.codex.value)
			{
				case "1":
					document.searchForm.tit.value = document.searchForm.ricerca.value;
					document.searchForm.aut.value = "";
					document.searchForm.sog.value = "";
					document.searchForm.edi.value = "";
					document.searchForm.luo.value = "";							
					break;
							
				case "2":
					document.searchForm.tit.value = "";
					document.searchForm.aut.value = document.searchForm.ricerca.value;
					document.searchForm.sog.value = "";
					document.searchForm.edi.value = "";
					document.searchForm.luo.value = "";							
					break;
							
				case "16":
					document.searchForm.tit.value = "";
					document.searchForm.aut.value = "";
					document.searchForm.sog.value = document.searchForm.ricerca.value;
					document.searchForm.edi.value = "";
					document.searchForm.luo.value = "";							
					break;
							
				case "99":
					document.searchForm.tit.value = document.searchForm.ricerca.value;
					document.searchForm.aut.value = document.searchForm.ricerca.value;
					document.searchForm.sog.value = document.searchForm.ricerca.value;
					document.searchForm.edi.value = "";
					document.searchForm.luo.value = "";
					break;							
			}
					
			window.document.searchForm.submit();
		}
	}		
}