function nahled(imgsrc,popis,sirka,vyska)
{
var nowywokno=window.open("","wokno","toolbar=0,width="+sirka+",height="+vyska+"");
nowywokno.document.write("<html><head><title>"+popis+"</title></head><body style='margin:0px 0px 0px 0px; cursor: pointer;'>");
nowywokno.document.write("<img src='"+imgsrc+"' onClick='window.close()' alt='"+popis+"'>");
nowywokno.document.write("</body></html>");
}
