function changeSize() {
  // calc window size
  var myWidth = 0, myHeight = 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;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
	
	// calc middle size
	var newH = myHeight - 55 ;
	
	document.getElementById('intro').style.height = newH+'px';
	document.getElementById('intro').style.width = myWidth+'px';
	
	if (myWidth >1385){
		var newPad = Math.round((myWidth - 1385)/2) -1 ;
		document.getElementById('seo_footer').style.marginLeft = newPad+'px';
		document.getElementById('seo_footer').style.borderLeft = '1px solid #64C864';
		document.getElementById('seo_footer').style.borderRight = '1px solid #64C864';
		document.getElementById('seo_footer').style.width = '1385px';
	}else{
		document.getElementById('seo_footer').style.width = '100%';
		document.getElementById('seo_footer').style.margin = '0 auto';
		document.getElementById('seo_footer').style.border = '0';
	}
	
}
window.onresize = function (){changeSize();}
window.onload = function (){changeSize();}