Load Media Queries in Head

<head>
<link rel="stylesheet" href="smartphone.css" media="only screen and (min-device-width : 320px) and (max-device-width : 480px)"/>

<link rel="stylesheet" href="smartphone-landscape.css" media="only screen and (min-width : 321px)"/>

<link rel="stylesheet" href="smartphone-portrait.css" media="only screen and (max-width : 320px)"/>

<link rel="stylesheet" href="ipad.css" media="only screen and (min-device-width : 768px) and (max-device-width : 1024px)"/>

<link rel="stylesheet" href="ipad-landscape.css" media="only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape)"/>

<link rel="stylesheet" href="ipad-portrait.css" media="only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait)"/>

<link rel="stylesheet" href="widescreen.css" media="only screen and (min-width : 1824px)"/>

<link rel="stylesheet" href="iphone4.css" media="only screen and (-webkit-min-device-pixel-ratio : 1.5), only screen and (min-device-pixel-ratio : 1.5)"/>
</head>