// JavaScript Document
// center page in vertical

function page_resize() {
	  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;
  }
  
  document.getElementById('container_main').style.marginTop = (myHeight-344)/2 + "px";
}
if(navigator.appName=="Netscape"){
	document.addEventListener("DOMContentLoaded",page_resize,false);
}
else{
	window.attachEvent("onload",page_resize);
}