var arrClickUrl = new Array(
	'http://www.parfums.cz/',
	'http://www.estranky.cz/',
	'http://www.skoda-auto.cz/',
	'http://www.rozhlas.cz/',
	'http://www.superhosting.cz/',
	'http://www.mpu.cz/',
	'http://www.uhrazeno.cz/',
	'http://www.blue-style.cz/',
	'http://www.cars.cz/',
	'http://www.itlogica.cz/'
	
);

function setNormPic() {
	if (this.src != arrImages[this.id].normSRC) {
		this.src = arrImages[this.id].normSRC;
	}
}

function setBWPic() {
	if (this.src != arrImages[this.id].bwSRC) {
		this.src = arrImages[this.id].bwSRC;
	}
}

function goToURL(e, url) {
	YAHOO.util.Event.stopEvent(e);
	if (url && url!='') {
		window.open(url);
	}
}

var arrImages = {};

function logaHPInit() {
	var reImgSrc = new RegExp('^(.*)\-bw(\..*)$','i');
	
	var elDiv = YAHOO.util.Dom.get('HPLoga');
	var arrImgEl = elDiv.getElementsByTagName('img');
	var newSRC = '';
	var tmpImg = null;
	for (var i=0,l=arrImgEl.length; i<l; i++) {
		newSRC = arrImgEl[i].src.replace(reImgSrc,'$1$2');
		tmpImg = new Image();
		tmpImg.src = newSRC;
		arrImgEl[i].id = 'hpLogoImg'+i;
		arrImages[arrImgEl[i].id] = {
			'bwSRC': arrImgEl[i].src,
			'normSRC':newSRC
		};
		YAHOO.util.Event.addListener(arrImgEl[i],'mouseover',setNormPic,arrImgEl[i], true);
		YAHOO.util.Event.addListener(arrImgEl[i],'mouseout',setBWPic,arrImgEl[i], true);
		if (arrClickUrl[i] && arrClickUrl[i]!='') {
			YAHOO.util.Event.addListener(arrImgEl[i],'click',goToURL,arrClickUrl[i], arrImgEl[i]);
			arrImgEl[i].style.cursor = 'pointer';
		}
	}
}

YAHOO.util.Event.onDOMReady(logaHPInit);