function validate_signup() {
    var emailAddress = document.getElementById("Email").value;
    var errorString = '';
    if (emailAddress == '' || emailAddress.indexOf('@') == -1) {
        errorString = 'Please enter your email address';
    }


    var els = document.getElementsByTagName('input');
    for (var i = 0; i < els.length; i++) {
        if (els[i].className == 'text' || els[i].className == 'date' || els[i].className == 'number') {
            if (els[i].value == '')
                errorString = 'Please complete all required fields.';
        }
        else if (els[i].className == 'radio') {
            var toCheck = document.getElementsByName(els[i].name);
            var radioChecked = false;
            for (var j = 0; j < toCheck.length; j++) {
                if (toCheck[j].name == els[i].name && toCheck[j].checked)
                    radioChecked = true;
            }
            if (!radioChecked)
                errorString = 'Please complete all required fields.';
        }
    }



    var isError = false;
    if (errorString.length > 0)
        isError = true;

    if (isError) {
        alert(errorString);
        return false;
    }
    else {
        setElementsAndPost();
    }
}

function createForm() {
    var myform = document.createElement("form");
    myform.setAttribute("id", "signup");
    myform.setAttribute("name", "signup");
    myform.setAttribute("action", "http://laurencesimons.net/signup.ashx");
    myform.setAttribute("method", "post");
    document.body.appendChild(myform);
    return myform;
}

function addToForm(frm, elem) {
    //alert(elem.name + "::" + elem.value);
    frm.appendChild(elem);
}

function createDynamicFormAndSubmit(elementsArray) {
    var dynamicForm = createForm();
    var elem;
    for (var i = 0; i < elementsArray.length; i++) {
        elem = document.createElement("input");
        elem.type = "hidden"
        elem.setAttribute("name", elementsArray[i].name);
        elem.setAttribute("value", elementsArray[i].value);
        addToForm(dynamicForm, elem);
    }

    dynamicForm.submit();
    //alert("exit createDynamicFormAndSubmit");
}



function MM_popupMsg(msg) { //v1.0
          alert(msg);
        }

        function MM_openBrWindow(theURL,winName,features) { //v2.0
        window.open(theURL,winName,features);
          
        }

        <!-- 

        function goHist(a) 
        {
           history.go(a);      // Go back one if goHist(-1)
        }
        // -->
        <!--
        function MM_reloadPage(init) {  //reloads the window if Nav4 resized
          if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
            document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
          else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
        }
        MM_reloadPage(true);
        // -->

        <!--
        function MM_preloadImages() { //v3.0
          var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
            var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
            if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
        }

        function MM_swapImgRestore() { //v3.0
          var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
        }

        function MM_findObj(n, d) { //v4.01
          var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
            d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
          if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
          for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
          if(!x && d.getElementById) x=d.getElementById(n); return x;
        }

        function MM_swapImage() { //v3.0
            var i, j=0, x, a = MM_swapImage.arguments;
            
            document.MM_sr=new Array; 
            
            for(i = 0; i < (a.length - 2); i += 3)
                if ((x=MM_findObj(a[i]))!=null)
                {
                    document.MM_sr[j++] = x;
                    if(!x.oSrc)
                        x.oSrc = x.src; 
                        x.src = a[i + 2];
                }
        }
                //-->
                
        //required function for checkbox options tree
        function StopPropagation(e) {
            if (!e) {
                e = window.event;
            }
            e.cancelBubble = true;
        }
        
        
        function togglePanel(objPanel,linkId,classVisible, classHidden) 
        {   
            var link = document.getElementById(linkId);
            var objPnl = document.getElementById(objPanel);            
                
		    if (objPnl.style.display == "none")
		    {			    
			    objPnl.style.display = "block";			    
			    link.className = classVisible;
			    
		    } 
		    else 
		    {			    
			    objPnl.style.display = "none";
			    link.className = classHidden;
		    }		    
	    }
	    	    
	    function togglePanel(objPanel)
        {   
            var objPnl = document.getElementById(objPanel);            
                
		    if (objPnl.style.display == "none")
		    {			    
			    objPnl.style.display = "block";
		    } 
		    else 
		    {			    
			    objPnl.style.display = "none";			    
		    }		    
	    }


    //Following vars are used by the flash embed code and shoudnt be removed 

    AC_FL_RunContent = 0;
    DetectFlashVer = 0;
    // Globals
    // Major version of Flash required
    var requiredMajorVersion = 7;
    // Minor version of Flash required
    var requiredMinorVersion = 0;
    // Revision of Flash required
    var requiredRevision = 14; 
    
    
    
    function getDayOfWeek(day)
    {
        var this_weekday_name_array = new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday");
        return this_weekday_name_array[day];
    }
    
    
    //$(window).load(function() {
    function updateWeekdays(cb)  
    {
        var _dateVal = cb[cb.selectedIndex].value;
               
        if (_dateVal!=undefined && _dateVal!="")
            {   
                var _date = new Date(_dateVal);
            
                _date.setDate(_date.getDate() - 7);        //setting as last week
                $(".TextboxDate").each(function(index) {
                    _date.setDate(_date.getDate() + 1);
                    //_date = _date.setDate();                    
                    $(this).val(_date.getDate() +"/"+(_date.getMonth()+1)+"/"+_date.getFullYear());
                });
          }
    }
    
    function updateMonthDays(cb)  
    {
        var _dateVal = cb[cb.selectedIndex].value;        
        if (_dateVal!=undefined && _dateVal!="")
            {   
                var dd = new Date(new Date().getFullYear(), _dateVal, 0);
                var numDays = dd.getDate();
                var _date = new Date();
                
                var count = 1;
                $(".TextboxDate").each(function(index) {                    
                    $(this).val("");
                    $("#"+this.id.replace("txtDate","txtDayOfWeek")).val("");
                    _date = new Date("" + count + "/" + _dateVal + "/" + new Date().getFullYear());
                    if (count<=numDays)
                    {                        
                        $(this).val(""+ count +"/"+ _dateVal +"/"+new Date().getFullYear());
                        $("#"+this.id.replace("txtDate","txtDayOfWeek")).val(getDayOfWeek(_date.getDay()))
                        count++;
                    }
                });
          }
    }
    
    //}); 
    
    function SetTotalTime()
    {       
        var startHrs=0; 
        var startMin=0; 
        var finishHrs=0; 
        var finishMin=0; 
        var startAMPM="";
        var finishAMPM="";
        var breakHrs = 0;
        var breakMin = 0;
        var startHoursFormatted = 0;
        var finishHoursFormatted = 0;
        
        var total = 0;
        
        $(".TextboxStartHour").each(function(index) {            
            var startHrs = parseInt(this.value,10);
            
            if (isNaN(startHrs) || startHrs<0)
            {
                this.value = "00";
                startHrs = 0;        
            }
            else if (startHrs>=12)
            {
                this.value = "11";
                startHrs = 11;
            }
            if (this.value.length==1)
            {
                this.value = "0" + this.value;
            }
            
            
            var startMin = parseInt($("#"+this.id.replace("Hour","Minutes")).val(),10);
            if (isNaN(startMin) || startMin<0)
            {
                startMin= 0;
                $("#"+this.id.replace("Hour","Minutes")).val("00");
            }
            else if (startMin>=60)
            {
                $("#"+this.id.replace("Hour","Minutes")).val("59");
                startMin = 59;
            }
            if ($("#"+this.id.replace("Hour","Minutes")).val().length==1)
            {
                $("#"+this.id.replace("Hour","Minutes")).val("0"+ $("#"+this.id.replace("Hour","Minutes")).val());                
            }
            
            
            var finishHrs = parseInt($("#"+this.id.replace("Start","Finish")).val(),10);
            if (isNaN(finishHrs) || finishHrs<0)
            {
                finishHrs= 0;
                $("#"+this.id.replace("Start","Finish")).val("00");
            }
            else if (finishHrs>=12)
            {
                $("#"+this.id.replace("Start","Finish")).val("11");
                finishHrs = 11;
            }
            if ($("#"+this.id.replace("Start","Finish")).val().length==1)
            {
                $("#"+this.id.replace("Start","Finish")).val("0"+ $("#"+this.id.replace("Start","Finish")).val());                
            }
            
            var finishMin = parseInt($("#"+this.id.replace("Start","Finish").replace("Hour","Minutes")).val(),10);
            if (isNaN(finishMin) || finishMin<0)
            {
                finishMin= 0;
                $("#"+this.id.replace("Start","Finish").replace("Hour","Minutes")).val("00");
            }
            else if (finishMin>=60)
            {
                $("#"+this.id.replace("Start","Finish").replace("Hour","Minutes")).val("59");
                finishMin = 59;
            }
            if ($("#"+this.id.replace("Start","Finish").replace("Hour","Minutes")).val().length==1)
            {
                $("#"+this.id.replace("Start","Finish").replace("Hour","Minutes")).val("0"+ $("#"+this.id.replace("Start","Finish").replace("Hour","Minutes")).val());                
            }
            
            var startAMPM = $("#"+this.id.replace("Hour","AMPM")).val();
            var finishAMPM = $("#"+this.id.replace("Start","Finish").replace("Hour","AMPM")).val();
            
            var breakHrs = parseInt($("#"+this.id.replace("Start","Break")).val(),10);
            if (isNaN(breakHrs) || breakHrs<0)            
            {
                breakHrs= 0;
                $("#"+this.id.replace("Start","Break")).val("0");
            }            
            
            var breakMin = parseInt($("#"+this.id.replace("Start","Break").replace("Hour","Minutes")).val(),10);
            if (isNaN(breakMin) || breakMin<0)                        
            {
                breakMin= 0;
                $("#"+this.id.replace("Start","Break").replace("Hour","Minutes")).val("00");
            }
            else if (breakMin>=60)
            {
                $("#"+this.id.replace("Start","Break").replace("Hour","Minutes")).val("59");
                breakMin = 59;
            }
            if ($("#"+this.id.replace("Start","Break").replace("Hour","Minutes")).val().length==1)
            {
                $("#"+this.id.replace("Start","Break").replace("Hour","Minutes")).val("0"+ $("#"+this.id.replace("Start","Break").replace("Hour","Minutes")).val());
            }
            
            if (!(startHrs==0 && finishHrs==0 && startMin==0 && finishMin==0))
            {             
                if (startAMPM=="PM")
                {
                    startHrs += 12;
                }
                
                if (finishAMPM=="PM")
                {
                    finishHrs += 12;
                }   
                total+=calculate(startHrs+":"+startMin,finishHrs+":"+finishMin);
                total-=((breakHrs*60)+breakMin);
            }            
        });
        
        //minus break time from total
        
        var totalEffortHrs = parseInt(total/60);
        var totalEffortMin = total%60;
        if (totalEffortMin<0)
        {
            totalEffortMin*=-1;
        }
        
        $(".TextboxTotalEffort").val("" + totalEffortHrs + "hrs " + totalEffortMin + " mins");
        
    }
    
    function calculate(startVal,finishVal) {
    var start = new Date();
    var end = new Date();

    //create the start and end dates
    var startPieces = startVal.split(':');
    var endPieces = finishVal.split(':');

    start.setHours(parseInt(startPieces[0]), parseInt(startPieces[1]) % 60);
    end.setHours(parseInt(endPieces[0]), parseInt(endPieces[1]) % 60);

    var difference = end - start;
    var minutes = difference / 60000;

    return minutes;
}

function confirmPostBack(ddl)
{
    if (!confirm("Are you sure, you want to discard your changes?"))
    {
        if (ddl.selectedIndex==0)
            ddl.selectedIndex=1;
        else
            ddl.selectedIndex=0;
        return false;
    }
    return true;
}