/* star "on" on mouse over */
function overstar(idElement,rate){
for(i=1; i<=5; i++){
if(i <= rate){
document.getElementById(idElement+'_'+i).style.backgroundPositionY = "20px";
} else {
document.getElementById(idElement+'_'+i).style.backgroundPositionY = "10px";
}
}
}
/* star "off" on mouse out */
function outstar(idElement,rate){
if(outstar_check == 0){
rate = rate;
} else {
rate = rateN;
}
for(i=1; i<=5; i++){
if(i<=rate){
document.getElementById(idElement+'_'+i).style.backgroundPositionY = "30px";
} else {
document.getElementById(idElement+'_'+i).style.backgroundPositionY = "10px";
}
}
}