var xmlhttp;

function load(url, action)
{
	xmlhttp=null;
	if (window.XMLHttpRequest)
	{// code for all new browsers
		xmlhttp=new XMLHttpRequest();
	}
	else if (window.ActiveXObject)
  	{// code for IE5 and IE6
  		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  	}
	if (xmlhttp!=null)
  	{
		switch(action)
		{
			case "search":
				xmlhttp.onreadystatechange=load_search_results;
  				break;
			default:	
				xmlhttp.onreadystatechange=state_Change;
				break;
		}
		xmlhttp.open("GET",url,true);
  		xmlhttp.send(null);
  	}
	else
  	{
  		alert("Your browser does not support XMLHTTP.");
  	}
}

function state_Change()
{
	if (xmlhttp.readyState==4)
  	{// 4 = "loaded"
  		if (xmlhttp.status==200)
    		{// 200 = OK
    		//do nothing
    		}
  	}
}

function load_search_results()
{
	if (xmlhttp.readyState==4)
  	{// 4 = "loaded"
  		if (xmlhttp.status==200)
    		{// 200 = OK
   			document.getElementById('result_holder').innerHTML=xmlhttp.responseText;
    		}
  	}
}

function updateSearch() {
	update_search();
}

function update_search()
{
	var month=document.getElementById("date-sel-mm").value;
	var day=document.getElementById("date-sel-dd").value;
	var time=document.getElementById("time").value;

/*
// we had this doing an ajax refresh but we decided we'd rather have the search URL be sharable
	var url=base_url+"video/getvid/"+month+"/"+day+"/"+time;

	load(url, "search");
*/
	var url=base_url+"video/find/"+month+"/"+day+"/"+time;
	document.location = url;
	
}

function buy(id, price)
{
	/*var email=document.getElementById('email').value;
	if(!validate_email(email)){
		alert("You have entered an invalid email");
		return false;
	}
	else{*/
		var temp_var=base64_encode(new Date().getTime());
		load(base_url+"buy/add/"+id+"/"+base64_encode(temp_var)+"/"+price, "none");
		//f.action="https://checkout.google.com/cws/v2/Merchant/324051281481493/checkoutForm";
		setTimeout("document.getElementById('former').submit()", 500);
		document.getElementById('order_id').value=id+"/"+temp_var+"/";
		return false;
	//}
}

function validate_email(email)
{
	var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	return filter.test(email);
}

function clear(f)
{
	alert(f.value);
	return true;
}

function validate()
{
	var name=document.fb.name.value;
	var email=document.fb.email.value;
	var feedback=document.fb.feedback.value;
	var err="";

	if (name=="")
		err+="- Please enter your name. We need to know who you are. \n\n";
	if (!validate_email(email))
		err+="- Please enter a valid email. We promise not to spam you. \n\n";
	if (feedback=="")
		err+="- Please enter some feedback. You do have something to tell us, don't you? \n\n";

	if(err!="")
	{
		alert(err);
		return false;
	}	
	return true;

}

function base64_encode( data ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Tyler Akins (http://rumkin.com)
    // +   improved by: Bayron Guevara
    // +   improved by: Thunder.m
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)        
    // -    depends on: utf8_encode
    // *     example 1: base64_encode('Kevin van Zonneveld');
    // *     returns 1: 'S2V2aW4gdmFuIFpvbm5ldmVsZA=='
 
    // mozilla has this native
    // - but breaks in 2.0.0.12!
    //if (typeof window['atob'] == 'function') {
    //    return atob(data);
    //}
        
    var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
    var o1, o2, o3, h1, h2, h3, h4, bits, i = ac = 0, enc="", tmp_arr = [];
    data = utf8_encode(data);
    
    do { // pack three octets into four hexets
        o1 = data.charCodeAt(i++);
        o2 = data.charCodeAt(i++);
        o3 = data.charCodeAt(i++);
 
        bits = o1<<16 | o2<<8 | o3;
 
        h1 = bits>>18 & 0x3f;
        h2 = bits>>12 & 0x3f;
        h3 = bits>>6 & 0x3f;
        h4 = bits & 0x3f;
 
        // use hexets to index into b64, and append result to encoded string
        tmp_arr[ac++] = b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4);
    } while (i < data.length);
    
    enc = tmp_arr.join('');
    
    switch( data.length % 3 ){
        case 1:
            enc = enc.slice(0, -2) + '==';
        break;
        case 2:
            enc = enc.slice(0, -1) + '=';
        break;
    }
 
    return enc;
}

function utf8_encode ( string ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: sowberry
    // +    tweaked by: Jack
    // +   bugfixed by: Onno Marsman
    // +   improved by: Yves Sucaet
    // +   bugfixed by: Onno Marsman
    // *     example 1: utf8_encode('Kevin van Zonneveld');
    // *     returns 1: 'Kevin van Zonneveld'
 
    string = (string+'').replace(/\r\n/g, "\n").replace(/\r/g, "\n");
 
    var utftext = "";
    var start, end;
    var stringl = 0;
 
    start = end = 0;
    stringl = string.length;
    for (var n = 0; n < stringl; n++) {
        var c1 = string.charCodeAt(n);
        var enc = null;
 
        if (c1 < 128) {
            end++;
        } else if((c1 > 127) && (c1 < 2048)) {
            enc = String.fromCharCode((c1 >> 6) | 192) + String.fromCharCode((c1 & 63) | 128);
        } else {
            enc = String.fromCharCode((c1 >> 12) | 224) + String.fromCharCode(((c1 >> 6) & 63) | 128) + String.fromCharCode((c1 & 63) | 128);
        }
        if (enc != null) {
            if (end > start) {
                utftext += string.substring(start, end);
            }
            utftext += enc;
            start = end = n+1;
        }
    }
 
    if (end > start) {
        utftext += string.substring(start, string.length);
    }
 
    return utftext;
}