var documentDimensions = []
function resize_(){  
  if(documentDimensions[0] == document.documentElement.offsetHeight && documentDimensions[1] == document.documentElement.offsetWidth) {
    return;
  } 
  var window_width=$(window).width()
  var qw=window_width-330 
  if( qw<900 ){
    $('#content').css('width',qw+'px')
    $('#slideshow img').css('width', qw+'px')
    $('#slideshow').css('width', qw+'px')
  }else{
    var q=(qw-900)/2+40
    $('#content').css('margin-left',q+'px')
  }
  document.getElementById('v-block').style.height='100%'
  
  documentDimensions[0] = document.documentElement.offsetHeight;
  documentDimensions[1] = document.documentElement.offsetWidth;
 } 
 $(document).ready(function(){resize_()}) 
 window.onresize=resize_