var sH,sH,wrapH,wrapW,margL,margT, mainImgW, mainImgH, enterBtnW, enterBtnH;

function initWindow(){
          
          sH = $(document).height();
          sW = $(document).width();
      
          $('#wrapper').css({width : sW + "px" , height : sH + "px"});
          wrapH = $('#wrapper').height();
          wrapW = $('#wrapper').width();
          
          mainImgW = $('#mainImg').width();
          mainImgH = $('#mainImg').height();
          
          enterBtnW = $('#enter_btn').width();
          enterBtnH = $('#enter_btn').height();
          
          margL = ( wrapW - mainImgW ) / 2;
          margT = (  (wrapH - 100 ) - mainImgH ) / 2;
          
          enterBtnML = ( wrapW - enterBtnW ) / 2;
          enterBtnMT = 10;
          
 
          
          $('#mainImg').css({marginLeft : margL + "px" , marginTop : margT + "px"});
          $('#enter_btn').css({marginLeft : enterBtnML + "px" , marginTop : enterBtnMT + "px"});
          
          
          $('#enter_btn').click(function(){
                $('#enter_btn').fadeOut(1000, function(){
                    location.replace('/index.php');
                });
          });
          
           
    }

$(document).ready(function(){

       initWindow();
    
    

});