a = 19;
var slump = Math.random();
var talet = Math.round(slump * (a-1))+1;
function create() {this.code = ''}
b = new Array()
for(var i=1; i<=a; i++) { b[i] = new create() }
b[1].code = ' 
'
b[2].code = ' 
'
b[3].code = ' 
'
b[4].code = ' 
'
b[5].code = ' 
'
b[6].code = ' 
'
b[7].code = ' 
'
b[8].code = ' 
'
b[9].code = ' 
'
b[10].code = ' 
'
b[11].code = ' 
'
b[12].code = ' 
'
b[13].code = ' 
'
b[14].code = ' 
'
b[15].code = ' 
'
b[16].code = ' 
'
b[17].code = ' 
'
b[18].code = ' 
'
b[19].code = ' 
'
var visa = "";
visa += ' '+b[talet].code+' '
document.write(visa);