function send_form() {
	
	viewportheight=(document.compatMode=="CSS1Compat")?document.documentElement.clientHeight:document.body.clientHeight;
    xc=Math.round((document.body.clientWidth/2)-109);

    //dom
    document.getElementById("box7").style.left = xc + "px";
    document.getElementById("box7").style.top = "275px";
    //nn
    document.getElementById("box7").left = xc;
    document.getElementById("box7").top = "500px";
    
	document.getElementById("box7").style.visibility = 'visible';

}

function daten_pruefen() {
	
	viewportheight=(document.compatMode=="CSS1Compat")?document.documentElement.clientHeight:document.body.clientHeight;
    xc=Math.round((document.body.clientWidth/2)-109);

    //dom
    document.getElementById("box8").style.left = xc + "px";
    document.getElementById("box8").style.top = "275px";
    //nn
    document.getElementById("box8").left = xc;
    document.getElementById("box8").top = "275px";
    
	document.getElementById("box8").style.visibility = 'visible';

}

function check_login() {
	
	viewportheight=(document.compatMode=="CSS1Compat")?document.documentElement.clientHeight:document.body.clientHeight;
    xc=Math.round((document.body.clientWidth/2)-109);

    //dom
    document.getElementById("box9").style.left = xc + "px";
    document.getElementById("box9").style.top = "275px";
    //nn
    document.getElementById("box9").left = xc;
    document.getElementById("box9").top = "275px";
    
	document.getElementById("box9").style.visibility = 'visible';

}