function opacity(id,opacStart,opacEnd,millisec){var speed=Math.round(millisec/100);var timer=0;if(opacStart>opacEnd){for(i=opacStart;i>=opacEnd;i--){setTimeout("changeOpac("+i+",'"+id+"')",(timer*speed));timer++;}}else if(opacStart<opacEnd){for(i=opacStart;i<=opacEnd;i++)
{setTimeout("changeOpac("+i+",'"+id+"')",(timer*speed));timer++;}}}
function changeOpac(opacity,id){var object=document.getElementById(id).style;object.opacity=(opacity/100);object.MozOpacity=(opacity/100);object.KhtmlOpacity=(opacity/100);object.filter="alpha(opacity="+opacity+")";}
function shiftOpacity(id,millisec){if(document.getElementById(id).style.opacity==0){opacity(id,0,100,millisec);}else{opacity(id,100,0,millisec);}}
function currentOpac(id,opacEnd,millisec){var currentOpac=100;if(document.getElementById(id).style.opacity<100){currentOpac=document.getElementById(id).style.opacity*100;}
opacity(id,currentOpac,opacEnd,millisec)}