//**********************************************************************************
//
// 	Rollover.js - javascript voor afhandeling van rollover-images.
//	copyright (c) 2000, Harry Nurmohamed
//
//**********************************************************************************


// *** globale variabelen ***
var Rollover_index = 0;
var Rollover_array = new Array();
var Rollover_clicked = "";


function preload_image( image_name )
{
	Rollover_array[ Rollover_index ] = new Image();
	Rollover_array[ Rollover_index ].src = image_name;
	Rollover_index++;
}



// Koppel deze functie aan de onClick-even van de link als deze een permanente keuze voorstelt.
function link_clicked( image_name )
{

	if( Rollover_clicked != "" && Rollover_clicked != image_name )
	{
		//er is reeds een andere image geclicked, die eerst uit zetten
		document.images[ Rollover_clicked ].src = Rollover_clicked + "_off.gif";
	}

	document.images[ image_name ].src = image_name + "_clicked.gif";

	Rollover_clicked = image_name;
}

// het argument dient de kale naam te bevatten
function image_off( image_name )
{
	if( Rollover_clicked != image_name )
	{
		document.images[ image_name ].src = image_name + "_off.gif";
	}
}

// het argument dient de kale naam te bevatten
function image_on( image_name )
{
	if( Rollover_clicked != image_name )
	{
		document.images[ image_name ].src = image_name + "_on.gif";
	}
}