/* 
 * Common functions
 * @copyright Josef linha, webdream.cz
 */

var maxOpacity=80;var minOpacity=60;function fadeIn(a){var e=document.getElementById(a);if(e==null)return;clearInterval(e.interval);e.interval=0;if(!e.interval2){e.interval2=setInterval("fadeIn('"+a+"')",10)}if(e.fadeState<=minOpacity){clearInterval(e.interval2);e.interval2=0}else{e.fadeState-=1}setOpacity(e,e.fadeState)}function fadeOut(a){var e=document.getElementById(a);if(e==null)return;clearInterval(e.interval2);e.interval2=0;if(!e.interval||e.interval==0){e.fadeState=minOpacity;e.interval=setInterval("fadeOut('"+a+"')",10)}if(e.fadeState>=maxOpacity){clearInterval(e.interval)}else{e.fadeState+=1}setOpacity(e,e.fadeState)}function setOpacity(e,a){if(e==null)return;e.style.opacity=(a/100);e.style.filter="alpha(opacity="+a+")"}