function ScrollTip(ScrollContentDiv){
    var idx = 0;
    var tipsArray = $("Tip_HDN").innerHTML.split("^^");
    this.render = function(){
        $(ScrollContentDiv).innerHTML = tipsArray[idx];
    }
    this.next = function(){
        idx += 1;
        if(idx > (tipsArray.length-1))
            idx = 0;
        this.render();
    }
    this.previous = function(){
        idx -= 1;
        if(idx < 0)
            idx = tipsArray.length-1;
        this.render();
    }
}