/////////////////////////////////////
    // schule.kapierich.net Funktionen //
    /////////////////////////////////////
    
    function movepic(img_name,img_src) {
        document[img_name].src=img_src;
    }
    
    function PopUp(URL,Popupname) {
        Popup = window.open(URL,Popupname,"height=640,width=480");
        Popup.focus();
    }
    
    
    //////////////////////
    // phpBB Funktionen //
    //////////////////////
    
    function floodprotect() {
    	alert("Sorry, Floodschutz ist aktiv. Versuchs vielleicht später nochmal! ;)");
    }
    
    
    /////////////////////////
    // Scroller Funktionen //
    /////////////////////////
    // 
    // Original:  Eddie Traversa (psych3@primus.com.au)
    // Web Site:  http://dhtmlnirvana.com/
    
    window.onerror = null;
    var topMargin = 200;
    var slideTime = 6000;
    var ns6 = (!document.all && document.getElementById);
    var ie4 = (document.all);
    var ns4 = (document.layers);
    
    function layerObject(id,left) {
        if (ns6) {
            this.obj = document.getElementById(id).style;
            this.obj.left = left;
            return this.obj;
        }
        else if(ie4) {
            this.obj = document.all[id].style;
            this.obj.left = left;
            return this.obj;
        }
        else if(ns4) {
            this.obj = document.layers[id];
            this.obj.left = left;
            return this.obj;
        }
    }
    
    function layerSetup() {
        floatLyr = new layerObject('floatLayer', 260);
        window.setInterval("main()", 10)
    }
    
    function floatObject() {
        if (ns4 || ns6) {
            findHt = window.innerHeight;
        } else if(ie4) {
            findHt = document.body.clientHeight;
        }
    } 
    
    function main() {
        if (ns4) {
            this.currentY = document.layers["floatLayer"].top;
            this.scrollTop = window.pageYOffset;
            mainTrigger();
        }
        else if(ns6) {
            this.currentY = parseInt(document.getElementById('floatLayer').style.top);
            this.scrollTop = scrollY;
            mainTrigger();
        } else if(ie4) {
            this.currentY = floatLayer.style.pixelTop;
            this.scrollTop = document.body.scrollTop;
            mainTrigger();
        }
    }
    
    function mainTrigger() {
        var newTargetY = this.scrollTop + this.topMargin;
        if ( this.currentY != newTargetY ) {
            if ( newTargetY != this.targetY ) {
                this.targetY = newTargetY;
                
                if (this.scrollTop > 25)
                    topMargin = this.findHt - 70;
                else
                    topMargin = 200;
                floatStart();
            }
            animator();
        }
    }
    
    function floatStart() {
        var now = new Date();
        this.A = this.targetY - this.currentY;
        this.B = Math.PI / ( 2 * this.slideTime );
        this.C = now.getTime();
        if (Math.abs(this.A) > this.findHt) {
            this.D = this.A > 0 ? this.targetY - this.findHt : this.targetY + this.findHt;
            this.A = this.A > 0 ? this.findHt : -this.findHt;
        }
        else {
            this.D = this.currentY;
        }
    }
    
    function animator() {
        var now = new Date();
        var newY = this.A * Math.sin( this.B * ( now.getTime() - this.C ) ) + this.D;
        newY = Math.round(newY);
        if (( this.A > 0 && newY > this.currentY ) || ( this.A < 0 && newY < this.currentY )) {
            if ( ie4 )document.all.floatLayer.style.pixelTop = newY;
            if ( ns4 )document.layers["floatLayer"].top = newY;
            if ( ns6 )document.getElementById('floatLayer').style.top = newY + "px";
        }
    }
    
    function start() {
        if(ns6||ns4) {
            pageWidth = innerWidth;
            pageHeight = innerHeight;
            layerSetup();
            floatObject();
        }
        else if(ie4) {
            pageWidth = document.body.clientWidth;
            pageHeight = document.body.clientHeight;
            layerSetup();
            floatObject();
        }
    }