function browserWindowSize() {
  var browserWinWidth = 0, browserWinHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
  //Non-IE
  browserWinWidth = window.innerWidth;
  browserWinHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
  //IE 6+ in 'standards compliant mode'
  browserWinWidth = document.documentElement.clientWidth;
  browserWinHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
  //IE 4 compatible
  browserWinWidth = document.body.clientWidth;
  browserWinHeight = document.body.clientHeight;
  }
  a = new Array;
  
  a[0]=browserWinWidth;
  a[1]=browserWinHeight;
  
  return a;
}

function repositioning(){
  size = browserWindowSize();
  if(size[1]<630){
    document.getElementById('container').style.marginTop='30px';
    document.getElementById('container').style.top='0%';
  }
  if(size[0]<994){
    document.getElementById('container').style.marginLeft='0px';
    document.getElementById('container').style.left='0%';  
  }
}

window.onResize = window.setTimeout("repositioning()",100);