Function init has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.

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    init:function(automodeperiod){
        var persistedtab=ddajaxtabs.getCookie(this.tabinterfaceid) //get position of persisted tab (applicable if persistence is enabled)
        var selectedtab=-1 //Currently selected tab index (-1 meaning none)
        var selectedtabfromurl=this.urlparamselect(this.tabinterfaceid) //returns null or index from: tabcontent.htm?tabinterfaceid=index
        this.automodeperiod=automodeperiod || 0

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Function init has 29 lines of code (exceeds 25 allowed). Consider refactoring.

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    init:function(automodeperiod){
        var persistedtab=ddajaxtabs.getCookie(this.tabinterfaceid) //get position of persisted tab (applicable if persistence is enabled)
        var selectedtab=-1 //Currently selected tab index (-1 meaning none)
        var selectedtabfromurl=this.urlparamselect(this.tabinterfaceid) //returns null or index from: tabcontent.htm?tabinterfaceid=index
        this.automodeperiod=automodeperiod || 0

Function connect has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

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ddajaxtabs.connect=function(pageurl, tabinstance){
    var page_request = false
    var bustcacheparameter=""
    if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
        try {

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Consider simplifying this complex logical expression.

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                if (selectedtabfromurl==i || this.enabletabpersistence && selectedtab==-1 && parseInt(persistedtab)==i || !this.enabletabpersistence && selectedtab==-1 && this.getselectedClassTarget(this.tabs[i]).className=="selected"){
                    selectedtab=i //Selected tab index, if found
                }

Function expandtab has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

    expandtab:function(tabref){
        var relattrvalue=tabref.getAttribute("rel")
        //Get "rev" attr as a string of IDs in the format ",john,george,trey,etc," to easy searching through
        var associatedrevids=(tabref.getAttribute("rev"))? ","+tabref.getAttribute("rev").replace(/\s+/, "")+"," : ""
        if (relattrvalue=="#default")

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Function cycleit has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

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    cycleit:function(dir, autorun){ //PUBLIC function to move forward or backwards through each hot tab (tabinstance.cycleit('foward/back') )
        if (dir=="next"){
            var currentTabIndex=(this.currentTabIndex<this.hottabspositions.length-1)? this.currentTabIndex+1 : 0
        }
        else if (dir=="prev"){

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