function returnURLParams(formId){
	var params='';
	var tmp = document.getElementById(formId);
	if(tmp) {
		if(tmp.elements.length>0)  for(i=0; i<tmp.elements.length; i++) {
			if(tmp.elements[i].name == 'param3') {
				//alert(document.getElementById(formId).elements[i].value);
				//alert(tmp.elements[i].value)
			}
			if(tmp.elements[i].style.display!='none' && tmp.elements[i].style.visibility!='hidden')
				switch(tmp.elements[i].type) {
					case "radio": case "checkbox": 
						if(tmp.elements[i].checked) {
							if(tmp.elements[i].value=='') params += "&" + tmp.elements[i].name + "=1";
							else params += "&" + tmp.elements[i].name + "=" + encodeURIComponent(tmp.elements[i].value);
						}
					break;
					case "select-multiple": 
						if(tmp.elements[i].options.length>0) for(y=0; y<tmp.elements[i].options.length; y++) {
							if(tmp.elements[i].options[y].selected) {
								params += "&" + tmp.elements[i].name + encodeURIComponent("[") + y + encodeURIComponent("]") + "=" + encodeURIComponent(tmp.elements[i].options[y].value);
							}
						}
					break;
					default: params += "&" + tmp.elements[i].name + "=" + encodeURIComponent(tmp.elements[i].value);
				}
		}
	}
	return params;
}

function create_http_handle(TYPE){
	var http_handle = false;
	if (window.XMLHttpRequest){
		http_handle = new XMLHttpRequest();
		if (http_handle.overrideMimeType){
			if (TYPE == "XML"){
				http_handle.overrideMimeType('text/xml');
			} else {
				http_handle.overrideMimeType('text/html');
			}
		}
	} else if (window.ActiveXObject){
		try {
			http_handle = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_handle = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!http_handle){
		alert("We are sorry but you are using an outdated browser.  To view this site you must update your browser.");
		return false;
	} else {
		return http_handle;
	}
}

function AJAXPostRequest(url, params, ready_function, first_param, proc_function) {
	proc_function = proc_function || '';
	first_param = first_param || '';
	xmlhttp = create_http_handle();
	var now = "&upid=" + new Date().getTime();
	url += (url.indexOf("?")+1) ? "&" : "?";
	url += now;
	//params += now;
	//xmlhttp.open("POST",url+params,true);
	xmlhttp.open("POST",url,true);
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-URLencoded");
	xmlhttp.setRequestHeader("Content-length", params.length);
	xmlhttp.setRequestHeader("Connection", "close");
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState==4) {eval(ready_function+'(\''+first_param+'\', xmlhttp.responseText);');}
	}
	if (proc_function) { eval(proc_function+'(\''+first_param+'\');');	}
	xmlhttp.send(params);
	return false;
}

function AJAXRequest(url_param, ready_function, first_param, proc_function) {
	proc_function = proc_function || '';
	first_param = first_param || '';
	var xmlhttp=false;
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {xmlhttp = new XMLHttpRequest();}
	xmlhttp.open("GET", url_param, true);
	xmlhttp.setRequestHeader("Last-Modified", gmdate("D, d M Y H:i:s")+ " GMT");
	xmlhttp.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
	xmlhttp.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
	xmlhttp.setRequestHeader("Pragma", "no-cache");
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState==4) {eval(ready_function+'(\''+first_param+'\', xmlhttp.responseText);');}
	}
	if (proc_function) {
		eval(proc_function+'();');
	}
	xmlhttp.send(null);
	return false;
}

function gmdate (format, timestamp) {
	var dt = ((typeof(timestamp) == 'undefined') ? new Date() : (typeof(timestamp) == 'number') ? new Date(timestamp*1000) : new Date(timestamp));
	timestamp = Date.parse(dt.toUTCString().slice(0, -4))/1000;
	return date(format, timestamp);
}

function doSystemMessages(type, message, param) {
	var now = new Date().getTime();
	var url="/index.php?upid="+now+"&ajt=messages&doit="+type+"&param1="+message+"&param2="+param;
	AJAXRequest(url, 'resultFP', type);
} 

function cancelSystemMessage() {
	var tmp1 = document.getElementById('system_message');
	var tmp2 = document.getElementById('liover');
	if(tmp1 && tmp2) {
		tmp1.innerHTML = '&nbsp;';
		tmp2.innerHTML = '&nbsp;';
		tmp1.style.display = 'none';
		tmp2.style.display = 'none';
	}
}

function resultFP(param, result) {
	var tmp1 = document.getElementById('system_message');
	var tmp2 = document.getElementById('liover');
	if(tmp1 && tmp2) {
		tmp1.innerHTML = result;
		var arrayPageSize = getPageSize();
		tmp2.style.width = arrayPageSize[0]+"px";
		tmp2.style.height= arrayPageSize[1]+"px";
		tmp2.onclick=cancelSystemMessage;
		tmp1.style.display = 'block'
		tmp2.style.display = 'block'
	}
}

function resultPostForm(param, result) {
	if(result=='email error') doSystemMessages('systemerror', 'Incorrect username or email!');
	if(result=='password error') doSystemMessages('systemerror', 'Incorrect password');
	if(result=='trainer logged') window.location.href = "http://"+window.location.host + '/trainers/dashboard.html';
	if(result=='client logged') window.location.href = "http://"+window.location.host + '/clients/dashboard.html';
	if(result=='logged') window.location.reload();
}
function sendPostForm(formId, urlf)	{
	params = returnURLParams(formId);
	if(params!='') AJAXPostRequest("/modules/trainers/ajaxhandler.php", params, 'resultPostForm', formId);
}

function getPageSize(){
        var xScroll, yScroll;
        if (window.innerHeight && window.scrollMaxY) {  
                xScroll = window.innerWidth + window.scrollMaxX;
                yScroll = window.innerHeight + window.scrollMaxY;
        } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
                xScroll = document.body.scrollWidth;
                yScroll = document.body.scrollHeight;
        } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
                xScroll = document.body.offsetWidth;
                yScroll = document.body.offsetHeight;
        }
        
        var windowWidth, windowHeight;
        
//      console.log(self.innerWidth);
//      console.log(document.documentElement.clientWidth);

        if (self.innerHeight) { // all except Explorer
                if(document.documentElement.clientWidth){
                        windowWidth = document.documentElement.clientWidth; 
                } else {
                        windowWidth = self.innerWidth;
                }
                windowHeight = self.innerHeight;
        } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
                windowWidth = document.documentElement.clientWidth;
                windowHeight = document.documentElement.clientHeight;
        } else if (document.body) { // other Explorers
                windowWidth = document.body.clientWidth;
                windowHeight = document.body.clientHeight;
        }       
        
        // for small pages with total height less then height of the viewport
        if(yScroll < windowHeight){
                pageHeight = windowHeight;
        } else { 
                pageHeight = yScroll;
        }

//      console.log("xScroll " + xScroll)
//      console.log("windowWidth " + windowWidth)

        // for small pages with total width less then width of the viewport
        if(xScroll < windowWidth){      
                pageWidth = xScroll;            
        } else {
                pageWidth = windowWidth;
        }
//      console.log("pageWidth " + pageWidth)

        arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
        return arrayPageSize;
}


function date ( format, timestamp ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Carlos R. L. Rodrigues (http://www.jsfromhell.com)
    // +      parts by: Peter-Paul Koch (http://www.quirksmode.org/js/beat.html)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: MeEtc (http://yass.meetcweb.com)
    // +   improved by: Brad Touesnard
    // +   improved by: Tim Wiel
    // +   improved by: Bryan Elliott
    // +   improved by: Brett Zamir
    // +   improved by: David Randall
    // +      input by: Brett Zamir
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Brett Zamir
    // -    depends on: timezone_abbreviations_list
    // %        note 1: Uses global: php_js to store the default timezone
    // *     example 1: date('H:m:s \\m \\i\\s \\m\\o\\n\\t\\h', 1062402400);
    // *     returns 1: '09:09:40 m is month'
    // *     example 2: date('F j, Y, g:i a', 1062462400);
    // *     returns 2: 'September 2, 2003, 2:26 am'
    // *     example 3: date('Y W o', 1062462400);
    // *     returns 3: '2003 36 2003'
    // *     example 4: x = date('Y m d', (new Date()).getTime()/1000); // 2009 01 09
    // *     example 4: (x+'').length == 10
    // *     returns 4: true
 
    var a, tal=[], jsdate=(
        (typeof(timestamp) == 'undefined') ? new Date() : // Not provided
        (typeof(timestamp) == 'number') ? new Date(timestamp*1000) : // UNIX timestamp
        new Date(timestamp) // Javascript Date()
    );
    var pad = function(n, c){
        if( (n = n + "").length < c ) {
            return new Array(++c - n.length).join("0") + n;
        } else {
            return n;
        }
    };
    var ret = '';
    var txt_weekdays = ["Sunday","Monday","Tuesday","Wednesday",
        "Thursday","Friday","Saturday"];
    var txt_ordin = {1:"st",2:"nd",3:"rd",21:"st",22:"nd",23:"rd",31:"st"};
    var txt_months =  ["", "January", "February", "March", "April",
        "May", "June", "July", "August", "September", "October", "November",
        "December"];
 
    var f = {
        // Day
            d: function(){
                return pad(f.j(), 2);
            },
            D: function(){
                var t = f.l();
                return t.substr(0,3);
            },
            j: function(){
                return jsdate.getDate();
            },
            l: function(){
                return txt_weekdays[f.w()];
            },
            N: function(){
                return f.w() + 1;
            },
            S: function(){
                return txt_ordin[f.j()] ? txt_ordin[f.j()] : 'th';
            },
            w: function(){
                return jsdate.getDay();
            },
            z: function(){
                return (jsdate - new Date(jsdate.getFullYear() + "/1/1")) / 864e5 >> 0;
            },
 
        // Week
            W: function(){
                var a = f.z(), b = 364 + f.L() - a;
                var nd2, nd = (new Date(jsdate.getFullYear() + "/1/1").getDay() || 7) - 1;
 
                if(b <= 2 && ((jsdate.getDay() || 7) - 1) <= 2 - b){
                    return 1;
                } else{
 
                    if(a <= 2 && nd >= 4 && a >= (6 - nd)){
                        nd2 = new Date(jsdate.getFullYear() - 1 + "/12/31");
                        return date("W", Math.round(nd2.getTime()/1000));
                    } else{
                        return (1 + (nd <= 3 ? ((a + nd) / 7) : (a - (7 - nd)) / 7) >> 0);
                    }
                }
            },
 
        // Month
            F: function(){
                return txt_months[f.n()];
            },
            m: function(){
                return pad(f.n(), 2);
            },
            M: function(){
                var t;
                t = f.F(); return t.substr(0,3);
            },
            n: function(){
                return jsdate.getMonth() + 1;
            },
            t: function(){
                var n;
                if( (n = jsdate.getMonth() + 1) == 2 ){
                    return 28 + f.L();
                } else{
                    if( n & 1 && n < 8 || !(n & 1) && n > 7 ){
                        return 31;
                    } else{
                        return 30;
                    }
                }
            },
 
        // Year
            L: function(){
                var y = f.Y();
                return (!(y & 3) && (y % 1e2 || !(y % 4e2))) ? 1 : 0;
            },
            o: function(){
                if (f.n() === 12 && f.W() === 1) {
                    return jsdate.getFullYear()+1;
                }
                if (f.n() === 1 && f.W() >= 52) {
                    return jsdate.getFullYear()-1;
                }
                return jsdate.getFullYear();
            },
            Y: function(){
                return jsdate.getFullYear();
            },
            y: function(){
                return (jsdate.getFullYear() + "").slice(2);
            },
 
        // Time
            a: function(){
                return jsdate.getHours() > 11 ? "pm" : "am";
            },
            A: function(){
                return f.a().toUpperCase();
            },
            B: function(){
                // peter paul koch:
                var off = (jsdate.getTimezoneOffset() + 60)*60;
                var theSeconds = (jsdate.getHours() * 3600) +
                                 (jsdate.getMinutes() * 60) +
                                  jsdate.getSeconds() + off;
                var beat = Math.floor(theSeconds/86.4);
                if (beat > 1000) beat -= 1000;
                if (beat < 0) beat += 1000;
                if ((String(beat)).length == 1) beat = "00"+beat;
                if ((String(beat)).length == 2) beat = "0"+beat;
                return beat;
            },
            g: function(){
                return jsdate.getHours() % 12 || 12;
            },
            G: function(){
                return jsdate.getHours();
            },
            h: function(){
                return pad(f.g(), 2);
            },
            H: function(){
                return pad(jsdate.getHours(), 2);
            },
            i: function(){
                return pad(jsdate.getMinutes(), 2);
            },
            s: function(){
                return pad(jsdate.getSeconds(), 2);
            },
            u: function(){
                return pad(jsdate.getMilliseconds()*1000, 6);
            },
 
        // Timezone
            e: function () {
                var abbr='', i=0;
                if (this.php_js && this.php_js.default_timezone) {
                    return this.php_js.default_timezone;
                }
                if (!tal.length) {
                    tal = timezone_abbreviations_list();
                }
                for (abbr in tal) {
                    for (i=0; i < tal[abbr].length; i++) {
                        if (tal[abbr][i].offset === -jsdate.getTimezoneOffset()*60) {
                            return tal[abbr][i].timezone_id;
                        }
                    }
                }
                return 'UTC';
            },
            I: function(){
                var DST = (new Date(jsdate.getFullYear(),6,1,0,0,0));
                DST = DST.getHours()-DST.getUTCHours();
                var ref = jsdate.getHours()-jsdate.getUTCHours();
                return ref != DST ? 1 : 0;
            },
            O: function(){
               var t = pad(Math.abs(jsdate.getTimezoneOffset()/60*100), 4);
               if (jsdate.getTimezoneOffset() > 0) t = "-" + t; else t = "+" + t;
               return t;
            },
            P: function(){
                var O = f.O();
                return (O.substr(0, 3) + ":" + O.substr(3, 2));
            },
            T: function () {
                var abbr='', i=0;
                if (!tal.length) {
                    tal = timezone_abbreviations_list();
                }
                if (this.php_js && this.php_js.default_timezone) {
                    for (abbr in tal) {
                        for (i=0; i < tal[abbr].length; i++) {
                            if (tal[abbr][i].timezone_id === this.php_js.default_timezone) {
                                return abbr.toUpperCase();
                            }
                        }
                    }
                }
                for (abbr in tal) {
                    for (i=0; i < tal[abbr].length; i++) {
                        if (tal[abbr][i].offset === -jsdate.getTimezoneOffset()*60) {
                            return abbr.toUpperCase();
                        }
                    }
                }
                return 'UTC';
            },
            Z: function(){
               var t = -jsdate.getTimezoneOffset()*60;
               return t;
            },
 
        // Full Date/Time
            c: function(){
                return f.Y() + "-" + f.m() + "-" + f.d() + "T" + f.h() + ":" + f.i() + ":" + f.s() + f.P();
            },
            r: function(){
                return f.D()+', '+f.d()+' '+f.M()+' '+f.Y()+' '+f.H()+':'+f.i()+':'+f.s()+' '+f.O();
            },
            U: function(){
                return Math.round(jsdate.getTime()/1000);
            }
    };
 
    return format.replace(/[\\]?([a-zA-Z])/g, function(t, s){
        if( t!=s ){
            // escaped
            ret = s;
        } else if( f[s] ){
            // a date function exists
            ret = f[s]();
        } else{
            // nothing special
            ret = s;
        }
 
        return ret;
    });
}