// **********************************
// **  C O O K I E  M O N S T E R  **
// **   By Dan Searle March 2001   **
// **  Ammended By Tolkien Osborn  **
// **        October 2003          **
// **********************************

// Create expiry time/date for all cookies.
// Currently set to : one month from today
today = new Date() ; month = today.getMonth() + 1 ; year = today.getYear() ; date = today.getDate()
if ( year < 1000 ) { year += 1900 } // Correct Netscape year bug
if ( month > 11 ) { month = 0 ; year++ } // If Dec, make it Jan of next year.
var expirydate = new Date(year,month,date)


// Create Cookie Function
function setCookie (name,value,expires,path,domain,secure) {
	document.cookie = name + "=" + escape (value) +
	  ((expires) ? "; expires=" + expires.toGMTString() : "") +
	  ((path) ? "; path=" + path : "") +
	  ((domain) ? "; domain=" + domain : "") +
	  ((secure) ? "; secure" : "");
}


// Return value of cookie 'name'
function getCookie(name) {
	var cookie = " " + document.cookie
	var search = " " + name + "="
	var setStr = null
	var offset = 0
	var end = 0
	if (cookie.length > 0) {
	       offset = cookie.indexOf(search)
	       if (offset != -1) {
	               offset += search.length
	               end = cookie.indexOf(";", offset)
	               if (end == -1) { end = cookie.length }
	               setStr = unescape(cookie.substring(offset, end))
	       }
	}
	return setStr
}


// Delete Cookie (sets cookie's expiry date to 1970)
function expireCookie (name,path,domain) {
	if (getCookie(name)) {
	    document.cookie = name + "=" +
	      ((path) ? "; path=" + path : "") +
	      ((domain) ? "; domain=" + domain : "") +
	      "; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}

function deleteCookies(thisform){
	var c;
	for ( c = 0 ; c < thisform.elements.length ; c++ ) {
		field = thisform.elements[c];
		expireCookie(field.name,"/");
	}
}


// Saves any text, select lists (not multiple) values in cookies
// Field's name is used for cookie name
function saveFields(thisform){
	for ( c = 0 ; c < thisform.elements.length ; c++ ) {
		field = thisform.elements[c];
		if ( field.type == "text" ) {
			setCookie(field.name,field.value,expirydate,"/")
		} else if ( field.type == "select-one" || field.type == "select-multiple") {
			for ( lc = 0 ; lc < field.length; lc++ ) {
				if ( field[lc].selected ) {
					setCookie(field.name,field[lc].value,expirydate,"/")
				}
			}
		} else if (field.type == "checkbox"){
        	if ( field.checked ) {
				var currval = getCookie(field.name);
                if (currval == null) { 
					currval = '';
				} else {
					currval = currval + ';'
				}
				expireCookie(field.name,"/");
				setCookie(field.name,currval+field.value,expirydate,"/")
            }	
		}
	}
}

// Looks for a cookie of each field's name and if there is one, fills the field with the cookies value
function fillFields(thisform){
	var c;
	for ( c = 0 ; c < thisform.elements.length ; c++ ) {
		
		field = thisform.elements[c]
				
		if (field.type == "checkbox") {
			cookval = getCookie(field.name);
				if (cookval != null) {
					cookval = cookval.split(";");
				} // it's now an array
		} else {		
			cookval = getCookie(field.name);
		}
		
		if (cookval != null) {
			if ( field.type == "text" ) {
				field.value = cookval
			} else if (field.type == "select-one"  || field.type == "select-multiple") {
				for (lc = 0 ; lc < field.length ; lc++) {
					if (field[lc].value == cookval) { 
						field.selectedIndex = lc;
						if (field.name == 'make') {
							populateModel(thisform,thisform.make.options[thisform.make.selectedIndex].value);
						}
						if (field.name == 'make2'){
							populateModel2(thisform,thisform.make2.options[thisform.make2.selectedIndex].value);
							//alert('I am back2');
						}
						if (field.name == 'make3'){
							populateModel3(thisform,thisform.make3.options[thisform.make3.selectedIndex].value);
							//alert('I am back3');
						}
							
					}
		//			alert("dealing with element number (of select):"+lc);
				}
			
			} else if (field.type == "checkbox"){
        		for ( n = 0 ; n < cookval.length ; n++ ) {
					if ( field.value == cookval[n] ) {
						field.checked = true;
					} 
				}
			}
		}
		//alert('have finished dealing with control '+c+' ('+field.name+') of '+thisform.elements.length+' name: '+thisform.name);
	}
}