function getQueryValue(name) {
	var value = "";
	if ( (i=location.search.indexOf('?'+name))==-1 && (i=location.search.indexOf('&'+name,3))==-1 )
		return null;
	else
		i += name.length+2;

	if ( (j=location.search.indexOf("&",i))!=-1 )
		value = location.search.substring(i,j);
	else
		value = location.search.substring(i,location.search.length);

	for ( i=0; i<value.length; i++ )
		if ( value.charAt(i)=='+' )
			value = value.substring(0,i)+' '+value.substring(i+1,value.length);

	return unescape(value);
}