var db_min_word_len = 3;

// Validates search input
function validateSearch(field)
{
	var searchField = document.getElementById(field);
	var searchString = trim(searchField.value);
	var msgEmpty = "Por favor ingrese una palabra en el campo de búsqueda";
	var msgTooShort = "La palabra de búsqueda debe contener al menos " + db_min_word_len + " caracteres";
	var msgSpaces = "Debe haber alguna palabra de al menos " + db_min_word_len + " caracteres en su búsqueda";

	if ((searchString.length == 0) || (searchString == "Búsqueda"))
	{
		alert(msgEmpty);
		return false;
	}
	else
	{
		string_array = searchString.split(" ");

		if (string_array.length > 1)
		{
			for (var i in string_array)
			{
				if (string_array[i].length >= db_min_word_len)
					return true;
			}

			alert(msgSpaces);
			return false;
		}
		else
		{
			if (searchString.length >= db_min_word_len)
				return true;
			else
			{
				alert(msgTooShort);
				return false;
			}
		}
	}
}

// Trims a string
function trim(inputString) {
   inputString = inputString.toString();
   return inputString.replace(/^\s*|\s*$/g,"");
}

function confirmAction(msg) {
var agree = confirm(msg);
if (agree)
	return true ;
else
	return false ;
}

function reload_Captcha(newSrc)
{
	document.getElementById('captcha_image').src=newSrc+'?'+(new Date()).getTime();
}