function resizeBG() {
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
  } else if( document.documentElement && ( document.documentElement.clientWidth) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
  } else if( document.body && ( document.body.clientWidth ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
  }
	//now we have the window width in 'myWidth'
	div2 = document.getElementById('bgholder');
	myWidth = myWidth - 15;
	newWidth = myWidth + "px";
	div2.style.width = newWidth;
}