function GetClientSize(direction) {
  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;
      }
    }
  }
  if (direction=='x') {
  	return myWidth;
  } else {
  	return myHeight;
  }
}

function resizeDiv(idName) {
	var divobj = document.getElementById(idName);
	//alert(idName+ ' ' + divobj.style.height);
	//alert(divobj.style.height);
	divobj.style.height = (GetClientSize('y') - 0)+'px';
}

window.onresize = function() {
	resizeDiv('content');
	resizeDiv('utility');
}