function metaCharset() { 
    metaCollection = document.getElementsByTagName('meta'); 
    for (i=0;i < metaCollection.length;i++) { 
        nameAttribute = metaCollection[i].content.search(/charset/); 
        if (nameAttribute!= -1) { 
            var TAG=metaCollection[i].content; 
            return TAG;
	    //alert(TAG); 
        } 
    } 
}