getParameter

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function getParameter(n) {
    var m = window.location.hash.match(new RegExp('(?:#|&)' + n + '=([^&]*)(&|$)')),
        result = !m ? '' : decodeURIComponent(m[1])
    return result ||getParameterByName(n)
}
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function getParameterByName(name, url) {
    if (!url) url = window.location.href
    name = name.replace(/[\[\]]/g, "\\$&")
    var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
        results = regex.exec(url)
    if (!results) return null
    if (!results[2]) return ''
    return decodeURIComponent(results[2].replace(/\+/g, " "))
}

getCookie

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function getCookie(name){
    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)")
    if(arr=document.cookie.match(reg))
        return unescape(arr[2])
    else
        return null
}