/* Overall popup function */
function popup(url, w, h, f){
	var day = new Date();
	var id = day.getTime();
	var name = "melt" + id;
	var features = "width="+w+",height="+h;
	if(f != null){
		features += "," + f;
	}
	eval("var win"+id+" = window.open('"+url+"', '"+name+"', '"+features+"');");
}
		
/* MELT! ticket form function */
function updateTicketPrice(f){
	var komb = f.kombi.options[f.kombi.selectedIndex].value;
		
	if(date1 > 0){
		pricekombi = 25;

	}
	else if(date2 > 0){
		pricekombi = 30;
	}
	else{
		pricekombi = 35;
	}
	
	var p = (komb * pricekombi);
	f.price.value = p;
	f.price.focus();
	return true;
}

/* MELT! shop form function */
function melt_shop(f) {
	var errormsg = "";
  	var field = f.email; 
  	var str = field.value; 

  	var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/;
  	var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; 
  	
  	if (reg1.test(str) || !reg2.test(str)) {
		errormsg += "You must enter a vaild email.\n";
  	}
  	
  	if(parseFloat(f.total.value) <= 0.00){
		errormsg += "You must order something to proceed.\n";
	}
	
  	if(errormsg == ""){
		window.focus();
		return true;
	}else{
  		alert("Sorry,\n---------------------------\n" + errormsg + "---------------------------"); 
  		f.email.focus();
  		f.email.select();
  		return false;
  	}
}

/* MELT! ticket form function */
function melt_tickets(f) {
	var errormsg = "";
  	var field = f.email; 
  	var str = field.value; 
  	var komb = f.kombi.options[f.kombi.selectedIndex].value;
  	var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/;
  	var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; 
  	
  	if (reg1.test(str) || !reg2.test(str)) {
		errormsg += "You must enter a vaild email.\n";
  	}
  	
  	if(komb <= 0){
		errormsg += "You must buy at least ONE ticket.\n";
	}
	
  	if(errormsg == ""){
		window.focus();
		return true;
	}else{
  		alert("Sorry,\n---------------------------\n" + errormsg + "---------------------------"); 
  		f.email.focus();
  		f.email.select();
  		return false;
  	}
}

/* MELT! ticket form function */
function y2k(number) { 
	return (number < 1000) ? number + 1900 : number; 
}

/* MELT! ticket form function */
function daysElapsed(date1,date2) {
    var difference = Date.UTC(y2k(date1.getYear()),date1.getMonth(),date1.getDate(),0,0,0) - Date.UTC(y2k(date2.getYear()),date2.getMonth(),date2.getDate(),0,0,0);
    return difference/1000/60/60/24;
}

/* MELT! ticket form variables */
var date1 = daysElapsed(new Date(2003,3,2),new Date());
var date2 = daysElapsed(new Date(2003,4,2),new Date());

/* initiate MELT! shop object */
var meltshop = new Shop();

/* MELT! shop class */
function Shop(){
	this.items = new Array();	
	
	this.AddItem = Shop_AddItem;
	this.UpdateItem = Shop_UpdateItem;
	this.UpdateTotal = Shop_UpdateTotal;
}

/*MELT! shop class member function */
function Shop_AddItem(id, x, price, title){
	this.items[this.items.length] = new Array(id, x, price, title);	
	
}

/*MELT! shop class member function */
function Shop_UpdateItem(x, id){
	for(var i=0; i < this.items.length; i++){
		if(this.items[i][0] == id) {		
			this.items[i][1] = x;
		}
	}	
}

/*MELT! shop class member function */
function Shop_UpdateTotal(f){
	var t = 0.00;
	var r = "ANZAHL: PREIS:     BESCHREIBUNG:\n=================================================\n\n";

	for(var i=0; i < this.items.length; i++){
		var s = round(parseInt(this.items[i][1]) * parseFloat(this.items[i][2]));
				
		eval("f.subtotal_"+this.items[i][0]+".value=\""+s+"\"");
		if(this.items[i][1] <= 0) continue;
		t += parseFloat(s);
		if(this.items[i][3].length > 28){
			var b = this.items[i][3].substr(0,25) + "...";
		}else{
			var b = this.items[i][3];
		}
		if(this.items[i][1] < 10) {
			var x = "0"+this.items[i][1];
		}else{
			var x = this.items[i][1];
		}
		if(this.items[i][2] < 10) {
			var p = "0"+this.items[i][2];
		}else{
			var p = this.items[i][2];
		}
		var pr = round(p);
		if (pr < 10) pr = "0"+pr;
		r += x+" stk. "+pr+" EUR  "+b+"\n";
	}
	var sum = round(t);
	if(sum > 1000){
		var spac = "";
	}else if(sum > 100){
		var spac = " ";
	}else if(sum > 10){
		var spac = "  ";
	}else{
		sum = "0" + sum;
		var spac = "  ";
	}
	r += "\n=================================================\n\nTOTAL:" + spac + sum + " EUR";
	f.total.value = sum;
	f.shoppinglist.value = r;	
}


/* Round a float certain deciamls, default to 2 */
 function round(x, floatprecision) {
 	floatprecision = (!floatprecision ? 2 : floatprecision);
	var r = Math.round(x*Math.pow(10,floatprecision))/Math.pow(10,floatprecision);
	r -= 0;
	return (r == Math.floor(r)) ? r + '.00' : ( (r*10 == Math.floor(r*10)) ? r + '0' : r);
} 

/* Mailinglist function */
function is_mailinglists(f){
	for(i=0; i < f.length; i++){
		e = f.elements[i];	
		if(e.type == "checkbox" && e.checked){
			return true;
		}
	}
}

/* Mailinglist function */
function join_mailinglists(f) {
	var errormsg = "";	
  	var str = f.email.value; 
  	var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; 
  	var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; 
  	 	
  	if (reg1.test(str) || !reg2.test(str)) {
  		errormsg += "You must enter a vaild email.\n";
  	}

	var selected = is_mailinglists(f);	
	if(!selected){
		errormsg += "You must select at least ONE list.\n";
	}
  	  	
  	if(errormsg == ""){
		window.focus();
		return true;
	}else{
  		alert("Sorry,\n---------------------------\n" + errormsg + "---------------------------"); 
  		f.email.focus();
  		f.email.select();
  		return false;
  	}
}