var limit=49;
var count=6;

function formHandler(form)
{
    var page = document.form.site.options[document.form.site.selectedIndex].value;
    window.location.href = page;
}

function randomNumber()
{
    do {
        today = new Date();
        num = today.getTime();
        num = Math.round(Math.abs(Math.sin(num) * 1000000)) % (limit - 1);
    } while (num == 0);
    return num;
}

function setRange()
{
    var val = document.numbers.lottery_name.options
      [document.numbers.lottery_name.selectedIndex].value;
    switch (val) {
    case "na_lotto_649":
    case "at_649":
    case "bc_49":
    case "on_49":
    case "qc_49":
    case "we_649":
        limit = 49;
        count = 6;
        break;
    case "on_lottario":
        limit = 45;
        count = 6;
        break;
    case "na_super_7":
        limit = 47;
        count = 7;
        break;
    case "na_lotto_max":
        limit = 49;
        count = 7;
    }
    if (count == 7)
        document.numbers.search_7.style.visibility = 'visible';
    else
        document.numbers.search_7.style.visibility = 'hidden';
}

function populateNumbers()
{
    setRange();

    array = new Array();
    for (i = 1; i <= count; i++) {
        array[i] = randomNumber();
        for (j = 1; j < i; j++)
            if (array[i] == array[j]) 
                i--;
    }

    last = 0;

    for (i = 1; i <= count; i++) {
        lowest = 100;
        for (j = 1; j <= count; j++)
            if (array[j] > last && array[j] < lowest)
                lowest = array[j];
        last = lowest;
        eval('document.numbers.search_' + i + '.value = lowest;');
    }

    for (i = 7; i > count; i--)
        eval('document.numbers.search_' + i + '.value = "";');
}


function isDigit(c)
{
    return ((c >= "0") && (c <= "9"));
}

function checkDuplicate(cmp)
{
    found = 0;
    for (j = 1; j <= count; j++) {
        val = eval('document.numbers.search_' + j + '.value');
        if (val == cmp)
            found++;
    }
    return (found > 1);
}

function checkNumbers()
{
    for (i = 1; i <= count; i++) {
        value = eval('document.numbers.search_' + i + '.value');
        if (value == '') {
             alert(count + " numbers are required for the lottery you've selected.");
             return (false);
        }
        if (isDigit(value) == false) {
             alert('"' + value + '"' + ' is not a number, please select a number between 1 and '
               + limit + '.');
             return (false);
        }
        if (value > limit) {
             alert('The number "' + value + '" is too big, the highest possible number is '
                + limit + '.');
             return (false);
        }
        if (value == '0') {
             alert('The number "0" is not a valid number, please select a number between 1 and '
               + limit + '.');
             return (false);
        }
        if (checkDuplicate(value)) {
             alert("You've entered the number \"" + value + '" more than once.');
             return (false);
        }
    }

    if (count != 7 && document.numbers.search_7.value > 0) {
        alert("Only " + count + " are required for the lottery you've selected.");
        return (false);
    }
}


function checkEmail(thisForm) {
   if (thisForm.email.value.length == 0) {
     alert("You did not fill out your email address");
     return false;
   }
   return true;
}

function checkName(thisForm) {
   if (thisForm.name.value.length == 0) {
     alert("You did not fill out your name");
     return false;
   }
   return true;
}

function escapeFrames() {
    if (window != window.top)
        top.location.href = location.href;
    if (parent.frames[1])
       parent.location.href = self.location.href;
}