var mobile_agents = " \
				1207;3gso;4thp;501i;502i;503i;504i;505i;506i;6310,\
				6590;770s;802s;a wa;acer;acs-;airn;alav;asus;attw,\
				au-m;aur ;aus ;abac;acoo;aiko;alco;alca;amoi;anex,\
				anny;anyw;aptu;arch;argo;bell;bird;bw-n;bw-u;beck,\
				benq;bilb;blac;c55/;cdm-;chtm;capi;comp;cond;craw,\
				dall;dbte;dc-s;dica;ds-d;ds12;dait;devi;dmob;doco,\
				dopo;el49;erk0;esl8;ez40;ez60;ez70;ezos;ezze;elai,\
				emul;eric;ezwa;fake;fly-;fly_;g-mo;g1 u;g560;gf-5,\
				grun;gene;go.w;good;grad;hcit;hd-m;hd-p;hd-t;hei-,\
				hp i;hpip;hs-c;htc ;htc-;htca;htcg;htcp;htcs;htct,\
				htc_;haie;hita;huaw;hutc;i-20;i-go;i-ma;i230;iac-,\
				iac/;ig01;im1k;inno;iris;jata;java;kddi;kgt/;kpt ,\
				kwc-;klon;lexi;lg g;lg-a;lg-b;lg-c;lg-d;lg-f;lg-g,\
				lg-k;lg-l;lg-m;lg-o;lg-p;lg-s;lg-t;lg-u;lg-w;lg/k,\
				lg/l;lg/u;lg50;lg54;lge-;lge/;lynx;leno;m1-w;m3ga,\
				m50/;maui;mc01;mc21;mcca;medi;meri;mio8;mioa;mo01,\
				mo02;mode;modo;mot ;mot-;mt50;mtp1;mtv ;mate;maxo,\
				merc;mits;mobi;motv;mozz;n100;n101;n102;n202;n203,\
				n300;n302;n500;n502;n505;n700;n701;n710;nec-;nem-,\
				newg;neon;netf;noki;nzph;o2 x;o2-x;opwv;owg1;opti,\
				oran;p800;pand;pg-1;pg-2;pg-3;pg-6;pg-8;pg-c;pg13,\
				phil;pn-2;pt-g;palm;pana;pire;pock;pose;psio;qa-a,\
				qc-2;qc-3;qc-5;qc-7;qc07;qc12;qc21;qc32;qc60;qci-,\
				qwap;qtek;r380;r600;raks;rim9;rove;s55/;sage;sams,\
				sc01;sch-;scp-;sdk/;se47;sec-;sec0;sec1;semc;sgh-,\
				shar;sie-;sk-0;sl45;slid;smb3;smt5;sp01;sph-;spv ,\
				spv-;sy01;samm;sany;sava;scoo;send;siem;smar;smit,\
				soft;sony;t-mo;t218;t250;t600;t610;t618;tcl-;tdg-,\
				telm;tim-;ts70;tsm-;tsm3;tsm5;tx-9;tagt;talk;teli,\
				topl;tosh;up.b;upg1;utst;v400;v750;veri;vk-v;vk40,\
				vk50;vk52;vk53;vm40;vx98;virg;vite;voda;vulc;w3c ,\
				w3c-;wapj;wapp;wapu;wapm;wig ;wapi;wapr;wapv;wapy,\
				wapa;waps;wapt;winc;winw;wonu;x700;xda2;xdag;yas-,\
				your;zte-;zeto;aste;audi;avan;blaz;brew;brvw;bumb,\
				ccwa;cell;cldc;cmd-;dang;eml2;fetc;hipt;http;ibro,\
				idea;ikom;ipaq;jbro;jemu;jigs;keji;kyoc;kyok;libw,\
				m-cr;midp;mmef;moto;mwbp;mywa;newt;nok6;o2im;pant,\
				pdxg;play;pluc;port;prox;rozo;sama;seri;smal;symb,\
				treo;upsi;vx52;vx53;vx60;vx61;vx70;vx80;vx81;vx83,\
				vx85;wap-;webc;whit;wmlb;xda-";

 function iphone_like(){
  if( navigator.userAgent.match(/.*(iphone|android|ipod).*/ig) )
   return true;
  return false;
 }

 function mobile(){
   if( navigator.userAgent.match(/.*up\.browser|up\.link|windows ce|iemobile|mini|mmp|symbian|smartphone|midp|wap|vodafone|teleca|o2|phone|pocket|kindle|mobile|pda|treo|psp.*/ig ) )
        return true;

   return mobile_agents.indexOf( navigator.userAgent.substr(0,4).toLowerCase() ) != -1;
 }

 function mobile_detect(){

  if( iphone_like() )
   return true;
 
  if( mobile() )
    return true;

  return false;
 }