function popup( popupUrl, popupName, popupParams )
{
		var popup = window.open( popupUrl, popupName, popupParams );
		popup.opener = window;
		popup.opener.name = 'opener';
		popup.focus()
}

function getArg( theArgName )
{
	sArgs = location.search.slice(1).split('&');
    r = '';
    for (var i = 0; i < sArgs.length; i++) {
        if (sArgs[i].slice(0,sArgs[i].indexOf('=')) == theArgName) {
            r = sArgs[i].slice(sArgs[i].indexOf('=')+1);
            break;
        }
    }
    return (r.length > 0 ? unescape(r).split(',') : '')
}

function newArgsContainItem( newArgs, item )
{
	for( var i = 0; i < newArgs.length; i++ )
	{
		if( newArgs[i][0] == item )
			return true;
	}
	
	return false;
}

function addToQueryString( queryString, newArgs )
{
	var splitQuery = queryString.slice(1).split('&');
	var argName;
	var queryString = '';
	var isFirst = true;
	var i;

	if( splitQuery[0] != '' )
	{
		for( i = 0; i < splitQuery.length; i++ )
		{
			argName = splitQuery[i].split('=')[0];
			if( ! newArgsContainItem( newArgs, argName ) )
			{
				if( ! isFirst )
					queryString += '&';
				else
					isFirst = false;
	
				queryString += splitQuery[i];
			}
		}
	}
	
	for( i = 0; i < newArgs.length; i++ )
	{
		if( ! isFirst )
			queryString += '&';
		else
			isFirst = false;
			
		queryString += newArgs[i][0] + '=' + newArgs[i][1];
	}
	
	if( queryString.length > 0 )
		queryString = '?' + queryString;
	
	return queryString;
}

function addScrollPosToURL( scrollX, scrollY, showFull )
{
	var args = location.search.slice(1).split('&');
	var argName;
	var queryString = '';
	var isFirst = true;

	for( var i = 0; i < args.length; i++ )
	{
		argName = args[i].split('=')[0];
		if(  argName != 'scrollX' && argName != 'scrollY' && argName != 'showFull' )
		{
			if( ! isFirst )
				queryString += '&';
			else
				isFirst = false;

			queryString += args[i];
		}
	}

	return queryString + ( '&showFull;='+ showFull + '&scrollX;=' + scrollX + '&scrollY;=' + scrollY ).replace( /;/g, '' );
}


function scrollToStoredPos()
{
	//if( window.storedScrollY )
		window.scrollTo( getArg( 'scrollX' ), getArg( 'scrollY' ) );
}