If else help

[chrisboots]

Hi, cant get this function to work how it should, if the days (var Diff)are less then 27 then textbox id="alow" should be the days * 100 . if the days are greater than 27 then its Math.round((Diff / 7) * 500). but if the price = 420 or 450 then it should be 2000 .. its probably something small and stupid ive missed. thanks in advanced

if (Diff < 28 && document.date.car.options[document.date.car.selectedIndex].value=="A" && document.date.rentalamount.value === "£420" || "£450" ) 
{
document.date.alow.value = "2000 Miles"
}
else if (Diff < 28) 
{
document.date.alow.value = Diff * 100 +" Miles"
}
	
	
else (Diff > 27 && document.date.car.options[document.date.car.selectedIndex].value=="A") 

{
document.date.alow.value = Math.round((Diff / 7) * 500)
}

[devnull69]

This is weird code ...

First of all: You cannot use the chained notation document.date.alow if "alow" is the id of an element. Generally this notation can only be used for name attributes

Try this

var miles = 0;
var price = document.getElementById('rentalamount').value;
if(Diff <= 27) {
   miles = Diff * 100;
} else {
   miles = Math.round((Diff / 7) * 500);
}

if(price == "£420" || price == "£450") {
   miles = 2000;
}

document.getElementById('alow').value = miles + " Miles";

[chrisboots]

Originally Posted by devnull69

This is weird code ...

First of all:

THANK YOU!. kinda know it would be something stupid ive done wrong. thanks