<script type="text/javascript">

window.onload = function(){

var chgOpacity=document.getElementById('chgOpacity');

oShareSide.onmouseover = function (){

startMove(0);

}

oShareSide,onmouseout = function(){

startMove(-200);

}

}

var chgOpacity=document.getElementById('chgOpacity');

chgOpacity.onmouseover = function (){

startChgOpac(100);

}

chgOpacity.onmouseout = function(){

startChgOpac(30);

}

var doing = null;

var alpha = 30;

function startChgOpac(iTarget){

clearInterval(doing);

doing = setInterval(function(){

var speeds = 0;

if (alpha > iTarget) {

speeds = -10 ;

}else{

speeds = 10;

}

if(alpha == iTarget){

clearInterval(doing);

}else{

alpha += speeds;

chgOpacity.style.filter='alpha(opacity='+alpha+')';

chgOpacity.style.opacity = alpha/100;

}

},30);

}