var IGNORE_CASE = true;

var param = new Array();

function getParam(p,d) 
{
	if ( param[prepareKey(p)] == null ) 
	{
		return ( d );
	}
	else
	{	
		return ( param[prepareKey(p)] );
	}
}

function prepareKey(p) 
{
	return ( IGNORE_CASE ? p.toLowerCase() : p );
}

function getAlterParam() 
{
	var temp;
	
	for ( var i = 0 ; i < getAlterParam.arguments.length ; i++ ) 
	{
		temp = getParam( getAlterParam.arguments[i] );
		
		if ( temp != null ) 
		{
			return ( temp );
		}
	}
	
	return ( null );
}

function analyseURL(theURL) 
{
	splitParams( theURL.substring(1) );
}

function splitParams(theParams) 
{
	if ( location.protocol.toLowerCase().indexOf('file') == 0 )
	{
		theParams = theParams.replace( /%26/, '&' );
	}
	
	var i = theParams.indexOf( '&' );
	
	if ( i >= 0 ) 
	{
		addParam( theParams.substring(0,i) );
		splitParams( theParams.substring(i + 1) );
	}
	else 
	{
		addParam( theParams );
	}
}

function addParam(p) 
{
	var i = p.indexOf( '=' );
	
	if ( i > 0 ) 
	{
		param[prepareKey(p.substring(0,i))] = decodeURI(p.substring(i+1));
	}
	else 
	{
		param[prepareKey(p)] = '';
	}
}

analyseURL( self.location.search );