function getWindowWidth() {
    var myWidth = 0;
    if( typeof( window.innerWidth ) == 'number' ) {
      //Non-IE
      myWidth = window.innerWidth;
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
      //IE 6+ in 'standards compliant mode'
      myWidth = document.documentElement.clientWidth;
    } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
      //IE 4 compatible
      myWidth = document.body.clientWidth;
    }
    return myWidth;
}


function getWindowHeight() {
    var myHeight = 0;
    if( typeof( window.innerWidth ) == 'number' ) {
      //Non-IE
      myHeight = window.innerHeight;
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
      //IE 6+ in 'standards compliant mode'
      myHeight = document.documentElement.clientHeight;
    } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
      //IE 4 compatible
      myHeight = document.body.clientHeight;
    }
    return myHeight;
}

function getCorrectMapWidth() {
    var mapWidth = 0;
    var windowWidth = 0;
    windowWidth = getWindowWidth();
    mapWidth = windowWidth - 250;
    return mapWidth;
}

function getCorrectMapHeight() {
    var mapHeight = 0;
    var windowHeight = 0;
    windowHeight = getWindowHeight();
    mapHeight = windowHeight - 50;
    return mapHeight;
}