Textbox 'this.value' stops JavaScript with single quotes - php

Question

I cannot get single quotes to work in JavaScript this.value. Double quotes work fine. I tried to use escape() and it didn't work and I cannot think of a way to use PHP to fix this, so does anyone else have any ideas?
function editItemInCart(newValue,fieldName,itemNum,cnt) {
//alert(newValue);
if (count == cnt) {
count = 0;
jQuery.ajax({
type:"POST",
url: "editItem.html",
data: "newvalue=" + escape(newValue) + "&fieldname=" + fieldName + "&itemNum=" + itemNum,
})
document.getElementById('status' + itemNum).innerHTML = "SAVED";
jQuery("#status" + itemNum).show();
setTimeout("fade_out('"+itemNum+"')", 1000);
}
//alert(newValue + fieldName + itemNum);
}
if ($cart['title'] != "")
echo "<label>Title: </label> <input type=\"text\" onKeyUp=\"doEditItemInCart(this.value,'title',".$itemNum.")\" onChange=\"editItemInCart(this.value,'title',".$itemNum.")\" value=\"".htmlspecialchars($cart['title'])."\"><br />";
function doEditItemInCart(newValue,fieldName,itemNum) {
count++;
setTimeout("editItemInCart(escape('"+newValue+"'),'"+fieldName+"',"+itemNum+","+count+")",200);
}

Answer 1

try this
jQuery.ajax({type:"POST",
url: "editItem.html?newvalue=" + escape(newValue) + "&fieldname=" + fieldName + "&itemNum=" + itemNum,
})
it also appears that you are setting the status of saved regardless of the ajax response. i suggest added an ajax success function
http://api.jquery.com/jQuery.ajax/