function alertSize() {
  var myWidth = 0, myHeight = 0, ScrollHeight=0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
    myHeight= myHeight+2;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  //window.alert( 'Width = ' + myWidth );
  //window.alert( 'Height = ' + myHeight );
  ScrollHeight=myHeight-deffHead;

//  window.alert( 'Height = ' + myHeight );
//  window.alert( 'ScrollHeight = ' + ScrollHeight );
  var ScrollEl=document.getElementById("scrollPan");
  ScrollEl.style.height = ScrollHeight+"px";


}