var expDays = 30;	// set this value to however many days you want your cookies to last
function setCookie(name, val,data) {
var exp = new Date();
var cookieTimeToLive = exp.getTime() + (expDays * 24 * 60 * 60 * 1000);
exp.setTime(cookieTimeToLive);
document.cookie = name + "=" + escape(val) + "; expires=" + exp.toGMTString();
}


function getCookie(name) {
var cookieNameLen = name.length;
var cLen = document.cookie.length;
var i = 0;
var cEnd;
var myStringToReturn;
var myStringToReturnLen;
while (i < cLen) {
var j = i + cookieNameLen;
if (document.cookie.substring(i,j) == name) {
cEnd = document.cookie.indexOf(";",j);
if (cEnd == -1) {
cEnd = document.cookie.length;
}
myStringToReturn = unescape(document.cookie.substring(j,cEnd));
myStringToReturnLen = myStringToReturn.length;
myStringToReturn = myStringToReturn.substring(1,myStringToReturnLen+1);
return myStringToReturn;
}
i++;
}
return "";
}
function setDefaultValues(frm) {
var strCookieName, strCookieVal, item;


    // Run through all the form fields
    for (var i=0; i < frm.elements.length; ++i) {

        // Get the current field
        form_field = frm.elements[i]

        // Get the field's name
        form_name = form_field.name

        // Is it a "product" field?
        if (form_name.substring(0,4) == "PROD") {

            // If so, extract the item
            item = form_name.substring(5,8)
            strCookieVal = getCookie(item);
            frm.elements[i].value = strCookieVal
        }
    }


}

// clear all cookies per item qtys 
function clear_items () {
var strCookieVal;
for (i = 0; i < NumberOfImages; i++) 
{
setCookie(""+items[i]," ")
}
}