//written by manuel villanueva 10/27/03

function metric(form) {
var input=form.input.value;

if (form.option.selectedIndex == 0) {
//units are in ounces
var unit =" ml";
answer = input * 30;
}

if (form.option.selectedIndex == 1) {
//units are in tablespoon
var unit =" ml";
answer = input * 15;
}

if (form.option.selectedIndex == 2) {
//units are in teaspoon
var unit =" ml";
answer = input * 5;
}

if (form.option.selectedIndex == 3) {
//units are in grains
var unit =" mg";
answer = input * 64.8;
}

if (form.option.selectedIndex == 4) {
//units are in drams
var unit =" ml";
answer = input * 4;
}

if (form.option.selectedIndex == 5) {
//units are in minums
var unit =" ml";
answer = input * 0.06;
}

if (form.option.selectedIndex == 6) {
//units are in cups (U.S)
var unit =" ml";
answer = input * 236.6;
}

if (form.option.selectedIndex == 7) {
//units are in drops
var unit =" ml";
answer = input * 0.06;
}

form.answer.value = Math.round(100*answer)/100 + unit;

//alert
if((input==null)||(input=="")||(isNaN(input))){
alert('Please enter numbers only.\nUse a period for decimal place.\nNo fractions! (i.e. 1\\2)');
form.input.focus();
form.input.select();
return false
}
var answer=form.answer.value;
}