Array in disarray

My cart is working almost the way I want. myfunction below returns the last item in the cart. I want to join the items in the array. I'm using alert() as a flag for myself to see if my array is working. Thanks for any suggestions.

function myfunction(){
var mycart = new Array()
JavaScript:top.MAIN.document.clientInfo.hideMessage.value = mycart
for ( i=0; i<mycart.length; i++)
alert(mycart)
}


function viewcart(){
for (i in shoppingCart) {

cartTotal = cartTotal + shoppingCart.price
if (shoppingCart.itemNum != null)
shoppingCart.display(true, top.MAIN.document)
mycart = new Array(shoppingCart.description +"..."+ shoppingCart.price )
}
}
<INPUT TYPE="button" onClick="JavaScript:top.HIDDEN.myFunction();" name="joe" value="Place Order">

 

You mean you want to literally join the values of the array together into one string ?

also alert(mycart) ....

 

Yes, for every item the user clicks in adding to the cart I want to join together. The code works the way I want except for the second line in myFunction which returns a null value. I have changed the code from previous post to what you see now. I believe the null value is because the items passed to myFunction are not initialized, thus I receive the null error.
I'm not sure how to initialize the array items in shopping cart passed to myFunction, or if I can even do that.

for (i in shoppingCart) {
cartTotal = cartTotal + shoppingCart.price
if (shoppingCart.itemNum != null)
shoppingCart.display(true, top.MAIN.document)
myFunction(shoppingCart.description +"...$"+ shoppingCart.price + ".00")
}
function myFunction(theItems){
alert(theItems)
JavaScript:top.MAIN.document.clientInfo.message.value = theItems
}

 

perhaps if I could get a link to a live shopping cart that might help .....

 

ok, thanks. I will post the link soon. I will have the cart working with a cookie returning the data, or an asp script. I prefer to have variables and arrays doing the processing in javascript. I'll get back with you on this.