/* 
 * Name: actions.js
 * 
 * Release notes:	2009-01-25/POK: removed contra productive code from chkKForm() and chkUForm(). Changed color of phone number fields.
 *			2010-06-26/POK: added check for uploaded file
 *			2011-07-12/POK: added check for approvement checkbox
 * 
 * 
 * 
 */

/* Load button images */
var img1 = new Image();
img1.src = "images/btn47.jpg";
var img2 = new Image();
img2.src = "images/btn45.jpg";

        
function showAlbum(folder)
{
    var path = folder + "/index.html";
    album = window.open(path,"","height=600,width=800,status=0,toolbar=0,location=0");
}

function rollButton( buttonId, status )
{
    if( status == "on" )
    {
        document.getElementById(buttonId).src = img2.src;
    }
    else
    {
        document.getElementById(buttonId).src = img1.src;
    }
}

function chkForm()
{
	/*
	 * 2009-01-31/POK:	Merged chkUForm() and chkKForm().
	 * 					Added numerical control of phone numbers and validation of email.
     * 2009-02-24/POK:  Disabling submit buttin to prevent double posting
	 * 
	 */ 

    if(document.getElementById("submitBtnK"))
    {
        document.getElementById("submitBtnK").disable = true;
    }
    else if(document.getElementById("submitBtnU"))
    {
        document.getElementById("submitBtnU").disable = true;
    }

    var aFields = new Array();
	var aRequired = new Array();
	var aAllowedExt = new Array();

	if(document.getElementById("kForm"))
	{
		aFields = Array("firstName","lastName","residence","email","homePhone","mobile","way","subject","question");
		aRequired = Array("firstName","lastName","residence","email");
		aAllowedExt = Array(".txt",".doc",".docx",".xls",".xlsx",".gif",".jpg",".jpeg");
	}
	else
	{
		aFields = Array("firstName","lastName","residence","age","parentName","email","homePhone","mobile","way","colour","sex","story");
	    aRequired = Array("firstName","lastName","residence","email","story");
	}
    
	var iLen = aFields.length;
	var sMsg = "";
	var sMsgAttachment = "";
	var sMsgErrMob = "";
	var sMsgErrPhone = "";
	var sMsgMail = "";
    var sMsgPhone = "";
    var sMsgReq = "";
    var sRequired = aRequired.toString();
	var sMsgApproved = "";
    
    for (var i=0; i<iLen; i++)
    {
        if(sRequired.search(aFields[i]) > -1 && (document.getElementById(aFields[i]).value=="" || document.getElementById(aFields[i]).value.indexOf("Skriv") > -1))
        {
            setFieldColor(aFields[i], "yellow");
            sMsgReq = "Markerade fält måste vara ifyllda!\n\n";
        }
        else
        {
        	setFieldColor(aFields[i], "white");
        }
        
        if(document.getElementById(aFields[i]).value=="" || document.getElementById(aFields[i]).value.indexOf("Skriv") > -1)
        {	
        	sMsgSend = "Alla fält är inte ifyllda.\nVill du skicka ändå?";
        }
    }
    
    if((document.getElementById("homePhone").value == "" || document.getElementById("homePhone").value.indexOf("Skriv") > -1) && (document.getElementById("mobile").value == "" || document.getElementById("mobile").value.indexOf("Skriv") > -1))
    {
        setFieldColor("homePhone", "lightblue");
        setFieldColor("mobile", "lightblue");
        sMsgPhone = "Du måste ange antingen hem- eller mobilnummer!\nSkriv numret i en följd UTAN mellanslag, men MED streck mellan riktnummer och abonnentnummer.";
    }
    else
    {
    	setFieldColor("homePhone", "white");
    	setFieldColor("mobile", "white");
    }
    
    if(sMsgReq == "" && sMsgPhone == "")
    {
    	if(IsValidEmail(document.getElementById("email").value))
    	{
    		setFieldColor("email", "white");
    	}
    	else
        {
        	setFieldColor("email", "red");
        	sMsgMail = "E-postadressen är inte giltig! Var vänlig kontrollera den.\n";
        }
    }

    if(sMsgPhone == "" && document.getElementById("homePhone").value.indexOf("Skriv") < 0 && document.getElementById("homePhone").value != "")
    {
    	if(isValidPhone(document.getElementById("homePhone").value))
    	{
    		setFieldColor("homePhone", "white");
    	}
    	else
    	{
    		setFieldColor("homePhone", "red");
        	sMsgErrPhone = "Var vänlig kontrollera hemtelefonnumret!\nSkriv numret i en följd UTAN mellanslag, men MED streck mellan riktnummer och abonnentnummer.\n\n";
    	}
    }
    
    if(sMsgPhone == "" && document.getElementById("mobile").value.indexOf("Skriv") < 0 && document.getElementById("mobile").value != "")
    {
    	if(isValidPhone(document.getElementById("mobile").value))
    	{
    		setFieldColor("homePhone", "white");
    	}
    	else
    	{
    		setFieldColor("mobile", "red");
        	sMsgErrMob = "Var vänlig kontrollera mobilnumret!\nSkriv numret i en följd UTAN mellanslag, men MED streck mellan riktnummer och abonnentnummer.";
    	}
    }

	if(document.getElementById("attachment") && document.getElementById("attachment").value != "") /* Added 2010-06-26/pok */
	{
		var sFilename = document.getElementById("attachment").value;
		var sExtension = sFilename.substr(sFilename.lastIndexOf("."));
		for(i=0;i<aAllowedExt.length;i++)
		{
			if(sExtension == aAllowedExt[i])
			{
				sMsgAttachment = "";
				break;
			}
			else
			{
				sMsgAttachment = "Bifogad filtyp är inte tillåten!";
			}
		}
	}
	
	if(document.getElementById("approved"))
	{
	    if(!document.getElementById("approved").checked)
	    {
			setFieldColor("approved", "red");
			sMsgApproved = "Du måste intyga att du läst informationen!";
	    }
	    else
	    {
			setFieldColor("approved", "white");
			sMsgApproved = "";
	    }
	}
	
    if(sMsgReq != "" || sMsgPhone != "")
    {
    	sMsg = sMsgReq + sMsgPhone;
    }	
    else if(sMsgErrPhone != "" || sMsgErrMob != "" || sMsgMail != "")
    {
    	sMsg = sMsgMail + sMsgErrPhone + sMsgErrMob;
    }
	else if(sMsgAttachment != "")
	{
		sMsg = sMsgAttachment;
	}
	else if(sMsgApproved != "")
	{
		sMsg = sMsgApproved;
	}
    
    if(sMsgSend != "" && sMsg == "")
    {
    	bIsOk = confirm(sMsgSend);
    }
    else if(sMsg != "")
    {
    	alert(sMsg);
    	bIsOk = false;
    }
    
    if(bIsOk)
    {
    	return true;
    }
    else
    {
        if(document.getElementById("submitBtnK"))
        {
            document.getElementById("submitBtnK").disable = false;
        }
        else if(document.getElementById("submitBtnU"))
        {
            document.getElementById("submitBtnU").disable = false;
        }
    	return false;
    }
}

function setFieldColor(sField, sColor)
{
	document.getElementById(sField).style.backgroundColor = sColor;
}

function isValidPhone(sText){
    if (!/^\d{2,4}-?\d{6,10}$/.test(sText))
    {    
        return false;
    }
    else
    {
        return true;
    }
}


function IsValidEmail(emailStr) {

	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	
	if (matchArray==null) {
		//alert("Email address seems incorrect (check @ and .'s)");
		return false;
	}
	
	var user=matchArray[1];
	var domain=matchArray[2];
	
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			//alert("Ths username contains invalid characters.");
			return false;
	    }
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			//alert("Ths domain name contains invalid characters.");
			return false;
	   }
	}
	
	if (user.match(userPat)==null) {
		//alert("The username doesn't seem to be valid.");
		return false;
	}
	
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
	
	for (var i=1;i<=4;i++) {
		if (IPArray[i]>255) {
			//alert("Destination IP address is invalid!");
			return false;
	   }
	}
	return true;
	}
	
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			//alert("The domain name does not seem to be valid.");
			return false;
	   }
	}
	
	if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {
		//alert("The address must end in a well-known domain or two letter " + "country.");
		return false;
	}
	
	if (len<2) {
		//alert("This address is missing a hostname!");
		return false;
	}
	
	return true;
}