// Child Checks
"first-child": "a.parentNode.getElementsByTagName('*')[0]==a",
"last-child": "jQuery.nth(a.parentNode.lastChild,1,'previousSibling')==a",
// Child Checks
"first-child": "a.parentNode.getElementsByTagName('*')[0]==a",
"last-child": "jQuery.nth(a.parentNode.lastChild,1,'previousSibling')==a",