imgsrc = new Array();
imgsrc[1]="obr/festivals1.jpg";  imgsrc[2]="obr/festivals2.gif";
imgsrc[3]="obr/tours1.jpg";      imgsrc[4]="obr/tours2.gif";
imgsrc[5]="obr/groups1.jpg";     imgsrc[6]="obr/groups2.gif";
imgsrc[7]="obr/hotels1.jpg";     imgsrc[8]="obr/hotels2.gif";
imgsrc[9]="obr/music1.jpg";    imgsrc[10]="obr/music2.gif";
imgsrc[11]="obr/meet1.jpg";    imgsrc[12]="obr/meet2.gif";
imgsrc[11]="obr/students1.jpg";    imgsrc[12]="obr/students2.gif";
imgsrc[13]="obr_poz/first.jpg";      imgsrc[14]="obr_poz/first2.jpg";
 

img=new Array();
n=0;
for(i=0;i<imgsrc.length;i++)
{
	if (imgsrc[i] != null)
	{
		img[n]=new Image();
		img[n].src=imgsrc[i];
		n++;
	}
}


function obrazek(cislo,jmeno_obr)
{
//	alert (cislo + " " + jmeno_obr);
	//alert ((cislo) + " " + imgsrc[cislo]);
	//alert (document[jmeno_obr].src);
	//return;
	document[jmeno_obr].src=imgsrc[cislo];
}

function ImgOver (jmeno_obr)
{
	src = document[jmeno_obr].src;
	src = src.replace ("0.jpg","1.jpg");
	document[jmeno_obr].src = src;
}

function ImgOut (jmeno_obr)
{
	src = document[jmeno_obr].src;
	src = src.replace ("1.jpg","0.jpg");
	document[jmeno_obr].src = src;
}