if( document.images )
{
	var whoarewe_btn = PreLoad( '<?php echo $_LANG ?>_whoarewe' );
	var whatdowedo_btn = PreLoad( '<?php echo $_LANG ?>_whatdowedo' );
	var howdowedoit_btn = PreLoad( '<?php echo $_LANG ?>_howdowedoit' );
	var where_btn = PreLoad( '<?php echo $_LANG ?>_where' );
	
}

function PreLoad(btn)
{
	var img_path = "/pae.co.at/graphics/buttons/";			//file path to find button images
	var temp = new Array();
	
	temp[0] = new Image();									//don't know which image we're actually loading
	temp[1] = new Image();									//so format temp to hold an image, any image
															//then we can use .src to load each button img
	temp[0].src = img_path + btn + "" + ".jpg";				//first version: no mouse over image
	temp[1].src = img_path + btn + "2" + ".jpg";			//second version: mouse over image

	return temp;
}

function Swap(btn, mouse_on)
{
	var img = btn.id;
	if(document.images )
	{
		var temp = eval(img);
		
		document[img].src = temp[mouse_on].src;
	}
}