// JavaScript Document

function toggle_referenzen_button_zurueck() {
	
	button = document.getElementById('referenzen_pfeil_links');
	
	button.style.visibility = 'visible';
	
}

function toggle_referenzen_button_weiter() {
	
	button = document.getElementById('referenzen_pfeil_rechts');
	
	button.style.visibility = 'visible';
	
}

function move_referenzen_left(gesamtbreite,blockbreite) {
		
	details = document.getElementById('referenzen_content');
	actpos = details.style.left;
	actpos = actpos.replace("px","");
	
	button1 = document.getElementById('referenzen_pfeil_links');
	button2 = document.getElementById('referenzen_pfeil_rechts');
	
	button1.style.visibility = 'hidden';
	
	if (actpos < 0) { 
		new Effect.Move('referenzen_content', { x: 653, y: 0, mode: 'relative', afterFinish: toggle_referenzen_button_zurueck });
		button2.style.display = 'block';
	}
	
	maxbreite = blockbreite * (-1);
	if (actpos >= maxbreite) {
		button1.style.display = 'none';	
	}
	
}

function move_referenzen_right(gesamtbreite,blockbreite) {
	
	details = document.getElementById('referenzen_content');
	actpos = details.style.left;
	actpos = actpos.replace("px","");
	
	button1 = document.getElementById('referenzen_pfeil_links');
	button2 = document.getElementById('referenzen_pfeil_rechts');
	
	breite1 = gesamtbreite * (-1);
	
	button2.style.visibility = 'hidden';
	
	if (actpos > breite1) {
		new Effect.Move('referenzen_content', { x: -653, y: 0, mode: 'relative', afterFinish: toggle_referenzen_button_weiter });
		button1.style.display = 'block';
	}
	
	maxbreite = (gesamtbreite - (2 * blockbreite)) * (-1);
	if (actpos <= maxbreite) {
		button2.style.display = 'none';	
	}
	
}