function trim(stringToTrim) {
		return stringToTrim.replace(/^\s+|\s+$/g,"");
	}

	function numbersonly(myfield, e, dec)
	{
		var key;
		var keychar;

		if (window.event)
		key = window.event.keyCode;
		else if (e)
			key = e.which;
		else
			return true;
		keychar = String.fromCharCode(key);
		// control keys
		if ((key==null) || (key==0) || (key==8) ||
				(key==9) || (key==13) || (key==27) )
			return true;

		// numbers
		else if ((("0123456789.").indexOf(keychar) > -1))
			return true;

		// decimal point jump
		else if (dec && (keychar == "."))
		{
			myfield.form.elements[dec].focus();
			return false;
		}
		else
			return false;
	}

	function wholenumbersonly(myfield, e, dec)

	{

		var key;
		var keychar;

		if (window.event)
		key = window.event.keyCode;
		else if (e)
			key = e.which;
		else
			return true;
		keychar = String.fromCharCode(key);
		// control keys
		if ((key==null) || (key==0) || (key==8) ||
				(key==9) || (key==13) || (key==27) )
			return true;

		// numbers
		else if ((("0123456789").indexOf(keychar) > -1))
			return true;

		// decimal point jump
		else if (dec && (keychar == "."))
		{
			myfield.form.elements[dec].focus();
			return false;
		}
		else
			return false;
	}



	function hidediv(id) 
	{
		//safe function to hide an element with a specified id
		if (document.getElementById) { // DOM3 = IE5, NS6
			document.getElementById(id).style.display = 'none';
		}
		else {
			if (document.layers) { // Netscape 4
				document.id.display = 'none';
			}
			else { // IE 4
				document.all.id.style.display = 'none';
			}
		}
	}

	function showdiv(id) {
		//safe function to show an element with a specified id

		if (document.getElementById) { // DOM3 = IE5, NS6
			document.getElementById(id).style.display = 'block';
		}
		else {
			if (document.layers) { // Netscape 4
				document.id.display = 'block';
			}
			else { // IE 4
				document.all.id.style.display = 'block';
			}
		}
	}