function mymkIfLessIE6() {
if (navigator.appName=='Microsoft Internet Explorer') {
	msie=navigator.appVersion.split("MSIE");
	version=parseFloat(msie[1]);
	if (version>=6) return false;
	} else return false;

	return true;
}

function mymkIsIE() {
if (navigator.appName=='Microsoft Internet Explorer') {return true;} else {return false;};
}; 

function pix2int(pix) {
if (pix=='') {pix=0;};
pix=" "+pix;
return parseInt(pix.replace('px',''));
}

function mymk_microscroll(amount,direction,d) {
if (amount<1) {return false;};
var i=0;
var scroll;
if (amount>=d) {scroll=d*direction;} else {scroll=amount*direction;};
while (document.getElementById('mymktwit'+i)) {
        document.getElementById('mymktwit'+i).style.top=(pix2int(document.getElementById('mymktwit'+i).style.top)+scroll)+'px';
        i++;
        };

amount=amount-d;
window.setTimeout("mymk_microscroll("+amount+","+direction+","+d+")",30);
};

function mymk_scroll(pos,d) {
var delta=pix2int(document.getElementById('mymktwittext').offsetTop)-pix2int(document.getElementById('mymktwit'+pos).offsetTop-1);
if (mymkIsIE()) {delta=delta-584;}; //ie7,i8@xp /ie8@vista
//alert(delta);
var jmax=Math.abs(delta);
var step=delta/jmax;

if (d==0) {d=jmax;};
mymk_microscroll(jmax,step,d);
};

//--------------
var xScrollDown=false; //down gesperrt?
var xScrollUp=false; //up gesperrt?

var enableScrollDown=true;
var enableScrollDownInit=false;

function mymk_scrollTwitItDown() {
var pos=parseInt(document.getElementById('mymktwitpos').value)+1;

if (document.getElementById('mymktwit'+pos)) {
        document.getElementById('mymktwitpos').value=pos;
        mymk_scroll(pos,15);
        };

if (enableScrollDown) {window.setTimeout("mymk_scrollTwitItDown()",100);};
if (enableScrollDownInit) {enableScrollDownInit=false; enableScrollDown=true;};
}

function mymk_scrollTwitDown(evnt) {
if (!xScrollDown) {xScrollUp=true; mymk_scrollTwitItDown();};

  if (evnt && evnt.preventDefault)
        evnt.preventDefault();
  return false;
};

function mymk_resetScrollTwitDown(evnt) {
enableScrollDown=false;
enableScrollDownInit=true;
xScrollUp=false;
}
//--------------

//--------------
var enableScrollUp=true;
var enableScrollUpInit=false;

function mymk_scrollTwitItUp() {
var pos=parseInt(document.getElementById('mymktwitpos').value)-1;

if (document.getElementById('mymktwit'+pos)) {
        document.getElementById('mymktwitpos').value=pos;
        mymk_scroll(pos,15);
        };

if (enableScrollUp) {window.setTimeout("mymk_scrollTwitItUp()",100);};
if (enableScrollUpInit) {enableScrollUpInit=false; enableScrollUp=true;};
};

function mymk_scrollTwitUp(evnt) {
if (!xScrollUp) { xScrollDown=true; mymk_scrollTwitItUp();} 

  if (evnt && evnt.preventDefault)
        evnt.preventDefault();
  return false;
};

function mymk_resetScrollTwitUp(evnt) {
enableScrollUp=false;
enableScrollUpInit=true;
xScrollDown=false;
}
//---------------


function mymk_scrollTwitTop(evnt) {
var pos=0;

if (document.getElementById('mymktwit'+pos)) {
        document.getElementById('mymktwitpos').value=pos;
        mymk_scroll(pos,0);
        };

  if (evnt && evnt.preventDefault)
        evnt.preventDefault();
  return false;
};

function mymk_scrollSelItem() {
pos=document.getElementById('mymktwitpos').value;
mymk_scroll(pos,0);
};


window.onload=function() {
if (document.getElementById('mymktwittext')) {
if (mymkIfLessIE6()) return;
//document.getElementById('mymktwitdown').onsubmit=mymk_scrollTwitDown;
document.getElementById('mymktwitdown').onmouseover=mymk_scrollTwitDown;
document.getElementById('mymktwitdown').onmouseout=mymk_resetScrollTwitDown;

//document.getElementById('mymktwitup').onsubmit=mymk_scrollTwitUp;
document.getElementById('mymktwitup').onmouseover=mymk_scrollTwitUp;
document.getElementById('mymktwitup').onmouseout=mymk_resetScrollTwitUp;

document.getElementById('mymktwittop').onsubmit=mymk_scrollTwitTop;
mymk_scrollSelItem();
};
}