/*
	Form validation functions
	Author: Johan Tavernier
	Date: 04 May 2006
	Version 1.0
*/

function checkNam(evt) {
	evt = (evt) ? evt : window.event;
	var charCode = (evt.charCode) ? evt.charCode : ((evt.which) ? evt.which : evt.keyCode);
	if (charCode > 31 && (charCode < 97 || charCode > 122) && (charCode < 65 || charCode > 90) && charCode != 32 && charCode != 45 && charCode < 192) {
		window.status = "The following characters are allowed: a-z, A-Z, à-ÿ and À-Ý.";
		return false;
	}
	status = "";
	return true;
}

function checkTel(evt) {
	evt = (evt) ? evt : window.event;
	var charCode = (evt.charCode) ? evt.charCode : ((evt.which) ? evt.which : evt.keyCode);
	if (charCode > 31 && (charCode < 48 || charCode > 57) && charCode != 45 && charCode != 47 && charCode != 43 && charCode != 46 && charCode != 40 && charCode != 41 && charCode != 32) {
		window.status = "The following characters are allowed: 0-9,  , /, +, (, ), ., and - ";
		return false;
	}
	status = "";
	return true;
}

function checkEma(evt) {
	evt = (evt) ? evt : window.event;
	var charCode = (evt.charCode) ? evt.charCode : ((evt.which) ? evt.which : evt.keyCode);
	if (charCode > 31 && (charCode < 48 || charCode > 57) && (charCode < 97 || charCode > 122) && charCode != 45 && charCode != 95 && charCode != 64 && charCode != 46) {
		window.status = "The following characters are allowed: 0-9, a-z, @, -, _, and .";
		return false;
	}
	status = "";
	return true;
}

function checkMes(evt) {
	evt = (evt) ? evt : window.event;
	var charCode = (evt.charCode) ? evt.charCode : ((evt.which) ? evt.which : evt.keyCode);
	if (charCode > 31 && charCode != 32 && charCode != 39 && charCode != 44 && charCode != 45 && charCode != 46 && (charCode < 48 || charCode > 57)  && charCode != 58 && charCode != 59 && (charCode < 65 || charCode > 90) && (charCode < 97 || charCode > 122) && charCode < 192) {
		window.status = "The following characters are allowed: 0-9, a-z, A-Z, à-ÿ, À-Ý,  , ,, -, ;, : and . .";
		return false;
	}
	status = "";
	return true;
}

function valEma(email) {
	var firstAt;
	var secondAt;
	var dotAfterAt;
	var dotBeforeAt;
	var emailNOK = false;
	for (var i = 0; i < email.length; i++) {
		if (email.charAt(i) == "@") {
			firstAt = i;
			break;
		} else {
			firstAt = 0;
		}
	}
	for (var j= firstAt + 1; j < email.length; j++) {
		if (email.charAt(j) == "@") {
			secondAt = j;
			break;
		} else {
			secondAt = 0;
		}
	}
	for (var k= 0; k < firstAt; k++) {
		if (email.charAt(k) == ".") {
			dotBeforeAt = k;
			break;
		} else {
			dotBeforeAt = -1;
		}
	}
	for (var l = firstAt; l < email.length; l++) {
		if (email.charAt(l) == ".") {
			dotAfterAt = l;
			break;
		} else {
			dotAfterAt = 0;
		}
	}
	for (var q = dotAfterAt; q < email.length; q++) {
		if ((email.charCodeAt(q) < 97 || email.charCodeAt(q) > 122) && email.charCodeAt(q) != 46) {
			emailNOK = true;
		}
	}
	for (var p = 0; p < email.length; p++) {
		if (email.charCodeAt(p) > 31 && (email.charCodeAt(p) < 48 || email.charCodeAt(p) > 57) && (email.charCodeAt(p) < 97 || email.charCodeAt(p) > 122) && email.charCodeAt(p) != 45 && email.charCodeAt(p) != 95 && email.charCodeAt(p) != 64 && email.charCodeAt(p) != 46) {
			emailNOK = true;
		}
	}
	if (firstAt == 0 || dotAfterAt == 0 || dotBeforeAt == 0 || firstAt + 1 == dotAfterAt || firstAt - 1 == dotBeforeAt || secondAt > 0) {
		emailNOK = true;
	}
	return emailNOK;
}

function valNam(name){	
	var nameNOK = false;
	for (var m = 0; m < name.length; m++) {
		if (name.charCodeAt(m) > 31 && (name.charCodeAt(m) < 97 || name.charCodeAt(m) > 122) && (name.charCodeAt(m) < 65 || name.charCodeAt(m) > 90) && name.charCodeAt(m) != 32 && name.charCodeAt(m) != 45 && name.charCodeAt(m) < 192) {
			nameNOK = true;
		}
	}
	return nameNOK;
}

function valTel(tel) {
	var telNOK = false;
	for (var o = 0; o < tel.length; o++) {
		if (tel.charCodeAt(o) > 31 && (tel.charCodeAt(o) < 48 || tel.charCodeAt(o) > 57) && tel.charCodeAt(o) != 45 && tel.charCodeAt(o) != 47 && tel.charCodeAt(o) != 43 && tel.charCodeAt(o) != 46 && tel.charCodeAt(o) != 40 && tel.charCodeAt(o) != 41 && tel.charCodeAt(o) != 32) {
			telNOK = true;
		}
	}
	return telNOK;
}

function valMes(bericht) {
	var berichtNOK = false;
	for (var r = 0; r < bericht.length; r++) {
		if (bericht.charCodeAt(r) > 31 && bericht.charCodeAt(r) != 32 && bericht.charCodeAt(r) != 39 && bericht.charCodeAt(r) != 44 && bericht.charCodeAt(r) != 45 && bericht.charCodeAt(r) != 46 && (bericht.charCodeAt(r) < 48 || bericht.charCodeAt(r) > 57)  && bericht.charCodeAt(r) != 58 && bericht.charCodeAt(r) != 59 && (bericht.charCodeAt(r) < 65 || bericht.charCodeAt(r) > 90) && (bericht.charCodeAt(r) < 97 || bericht.charCodeAt(r) > 122) && bericht.charCodeAt(r) < 192) {
			berichtNOK = true;
		}
	}
	return berichtNOK;
}

function checkForm(form) {
	switch (form.soort.value) {
	case "G":
		if (form.naam.value.length == 0) {
			alert("Please fill in your last name");
			return false;
		} else if (valNam(form.naam.value)) {
			alert("The following characters are allowed for last name: a-z, A-Z, à-ÿ and À-Ý.");
			return false;
		} else if (form.voornaam.value.length == 0) {
			alert("Please fill in your first name.");
			return false;
		} else if (valNam(form.voornaam.value)) {
			alert("The following characters are allowed for first name: a-z, A-Z, à-ÿ and À-Ý.");
			return false;
		} else if (form.gemeente.value.length == 0) {
			alert("Please fill in your city.");
			return false;
		} else if (valNam(form.gemeente.value)) {
			alert("The following characters are allowed for city: a-z, A-Z, à-ÿ and À-Ý.");
			return false;
		} else if (form.email.value.length == 0) {
			alert("Please fill in your email address.");
			return false;
		} else if (valEma(form.email.value)) {
			alert("Please fill in a correct email address.");
			return false;
		} else if (form.bericht.value.length == 0 && (form.soort.value == "C" || form.soort.value == "G")) {
			alert("Please fill in your message.");
			return false;
		} else if (valMes(form.bericht.value) && (form.soort.value == "C" || form.soort.value == "G")) {
			alert("Please fill in a correct message.");
			return false;
		} else {
			return true;
		}
		break;
	case "C":
		if (form.naam.value.length == 0) {
			alert("Please fill in your last name");
			return false;
		} else if (valNam(form.naam.value)) {
			alert("The following characters are allowed for last name: a-z, A-Z, à-ÿ and À-Ý.");
			return false;
		} else if (form.voornaam.value.length == 0) {
			alert("Please fill in your first name.");
			return false;
		} else if (valNam(form.voornaam.value)) {
			alert("The following characters are allowed for first name: a-z, A-Z, à-ÿ and À-Ý.");
			return false;
		} else if (form.tel.value.length == 0) {
			alert("Please fill in your telephone number.");
			return false;
		} else if (valTel(form.tel.value)) {
			alert("The following characters are allowed for tel: 0-9,  , /, +, (, ), ., and -.");
			return false;
		} else if (form.email.value.length == 0) {
			alert("Please fill in your email address.");
			return false;
		} else if (valEma(form.email.value)) {
			alert("Please fill in a correct email address.");
			return false;
		} else if (form.bericht.value.length == 0 && (form.soort.value == "C" || form.soort.value == "G")) {
			alert("Please fill in your message.");
			return false;
		} else if (valMes(form.bericht.value) && (form.soort.value == "C" || form.soort.value == "G")) {
			alert("Please fill in a correct message.");
			return false;
		} else {
			return true;
		}
		break;
	case "P":
		if (form.naam.value.length == 0) {
			alert("Please fill in your last name");
			return false;
		} else if (valNam(form.naam.value)) {
			alert("The following characters are allowed for last name: a-z, A-Z, à-ÿ and À-Ý.");
			return false;
		} else if (form.voornaam.value.length == 0) {
			alert("Please fill in your first name.");
			return false;
		} else if (valNam(form.voornaam.value)) {
			alert("The following characters are allowed for first name: a-z, A-Z, à-ÿ and À-Ý.");
			return false;
		} else if (form.tel.value.length == 0) {
			alert("Please fill in your telephone number.");
			return false;
		} else if (valTel(form.tel.value)) {
			alert("The following characters are allowed for tel: 0-9,  , /, +, (, ), ., and -.");
			return false;
		} else if (form.email.value.length == 0) {
			alert("Please fill in your email address.");
			return false;
		} else if (valEma(form.email.value)) {
			alert("Please fill in a correct email address.");
			return false;
		} else {
			return true;
		}
		break;
	}
}

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_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_nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}

function MM_setTextOfTextfield(objName,x,newText) { //v3.0
  var obj = MM_findObj(objName); if (obj) obj.value = newText;
}