function position(){

		if (window.innerWidth) {
    w = window.innerWidth;
  } else if (document.body && document.body.offsetWidth) {
    w = document.body.offsetWidth;
  } else {
    return false;
  }
		  if (window.innerHeight) {
    h = window.innerHeight;
  } else if (document.body && document.body.offsetHeight) {
    h = document.body.offsetHeight;
  } else {
    return false;
  }
    ypos = parseInt(h/2); 
    xpos = parseInt(w/2);
	document.getElementById("tabcon").style.top =  ypos-237+'px';
    document.getElementById("tabcon").style.left =  xpos-385+'px';
    }
//divStr = "<div style=\"height:"+contentHeight+"px;\">&nbsp;</div><div style=\"float:left; width:"+ContentWidth+"px;\">&nbsp;</div>";
//document.write("divStr")
   position();