單純、幸福

function CheckID( id ) {
tab = "ABCDEFGHJKLMNPQRSTUVXYWZIO"                     
A1 = new Array (1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3 );
A2 = new Array (0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5 );
Mx = new Array (9,8,7,6,5,4,3,2,1,1);


if ( id.length != 10 ) return false;
i = tab.indexOf( id.charAt(0) );
if ( i == -1 ) return false;
sum = A1[i] + A2[i]*9;


for ( i=1; i<10; i++ ) {
v = parseInt( id.charAt(i) );
if ( isNaN(v) ) return false;
sum = sum + v * Mx[i];
}
if ( sum % 10 != 0 ) return false;
return true;
}