function getwindowsizex() {
	  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;
	  }
	  return myWidth;
	  
	}
	
	function getwindowsizey() {
	  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;
	  }
	  return myHeight;
	  
	}
	
	function getwindowleft() {
 		var winX = (document.all)?window.screenLeft:window.screenX;
  	 	return winX;
	}
	
	function getwindowtop() {
 		var winY = (document.all)?window.screenTop:window.screenY;
		return winY;
	}
	
	function open_window(url,name) {
		var left=getwindowleft();
		var top=getwindowtop();
		var width=getwindowsizex();
		var height=getwindowsizey();
		
		left=left+(width/3);
		top=top+(height/3);
		width=width/2;
		height=height/2;
 		window.open(url,name,'resizable=yes,toolbar=no,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top);
		
	}
// JavaScript Document