/**
 * Laad contrast
 */
var contrast = getCookie('contrast');
if(contrast && contrast == 'true')
	addContrast();
else
	removeContrast();

// Wissel contrast
function showContrast() {
	if(contrast)
		removeContrast();
	else
		addContrast();
}

// Stel contrast in
function addContrast() {
	contrast = true;
	if(document.styleSheets[1])
		document.styleSheets[1].disabled = false;
		
	/* Save cookie */
	var expires = 30 * 24 * 60; // 30 days in minutes
	var path = "/";
	var domain = "";
	setCookie('contrast', contrast, expires, path, domain);
}

// Verwijder contrast
function removeContrast() {
	contrast = false;
	if(document.styleSheets[1])
		document.styleSheets[1].disabled = true;
	
	/* Save cookie */
	var expires = 30 * 24 * 60; // 30 days in minutes
	var path = "/";
	var domain = "";
	setCookie('contrast', contrast, expires, path, domain);
}