Image Swap Trouble

[code=html]

feed = new Image();
feed.src = “images/feed.png”;
feedover = new Image();
feedover.src = “images/feedover.png”;

email = new Image();
email.src = “images/email.png”;
emailover = new Image();
emailover.src = “images/emailover.png”;

technorati = new Image();
technorati.src = “images/technorati.png”;
technoratiover = new Image();
technoratiover.src = “images/technoratiover.png”;

mbl = new Image();
mbl.src = “images/mbl.png”;
mblover = new Image();
mblover.src = “images/mblover.png”;

function synOVER(img) {
if(img == feed) {
document.getElementById(‘rss’).style.backgroundImage = “url(“+feed+”)”;
} else if (img == email) {
document.getElemetnById(’email’).style.backgroundImage = “url(“+emailover+”)”;
} else if (img == technorati) {
document.getElementById(‘tech’).style.backgroundImage = “url(“+technoratiover+”)”;
} else {
document.getElementById(‘mbl’).style.backgroundImage = “url(“+mblover+”)”;
}
}

function synOUT(img) {
if(img == feed) {
document.getElementById(‘rss’).style.backgroundImage = “url(“+feed+”)”;
} else if (img == email) {
document.getElemetnById(’email’).style.backgroundImage = “url(“+email+”)”;
} else if (img == technorati) {
document.getElementById(‘tech’).style.backgroundImage = “url(“+technorati+”)”;
} else {
document.getElementById(‘mbl’).style.backgroundImage = “url(“+mbl+”)”;
}
}

[/code]

This doesn’t throw errors, but it doesn’t work either. I’ve ensured that all of the HTML is correct, I just need help with the JS please and thanks.

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