var presence = 0; 
var versionmin=5;
gotovb = 'false' ;
if (navigator.mimeTypes && navigator.mimeTypes.length) 
{
nombredeplug=navigator.plugins.length;
letype=navigator.mimeTypes['application/x-shockwave-flash'];

if (letype){
for(x=-1;x<nombredeplug;x++){
leplug = navigator.plugins[x];
if (navigator.plugins[x].name=='Shockwave Flash' ){
for(y=versionmin-1;y<10;y++){

if(navigator.plugins[x].description.indexOf('Flash '+versionmin+'.',0)!= -1){laversion='yes';break;}
}
;break;}else{laversion='no';};
;};}
if (letype && letype.enabledPlugin && laversion=='yes') presence = 'true';
else presence = 'false';
}
else{gotovb = 'true';}