// JavaScript Document
function validateForm() {
	var err = 0;
	
	if(document.getElementById('nev').value == '') {
		document.getElementById('nev').style.border = '2px solid #FF0000';
		err = 1;} else {
		document.getElementById('nev').style.border = '1px solid #7F9DB9';
		}

	if(echeck(document.getElementById('email').value) == 1 || document.getElementById('emailChk').value == 1) {
		document.getElementById('email').style.border = '2px solid #FF0000';
		err = 1;} else {
		document.getElementById('email').style.border = '1px solid #7F9DB9';
		}

	if(document.getElementById('uzenet').value == '') {
		document.getElementById('uzenet').style.border = '2px solid #FF0000';
		err = 1;} else {
		document.getElementById('uzenet').style.border = '1px solid #7F9DB9';
		}
				
	if(IsNumeric(document.getElementById('txtNumber').value) == false || document.getElementById('txtNumber').value.length < 5) {
		document.getElementById('txtNumber').style.border = '2px solid #FF0000';
		err = 1;} else {
		document.getElementById('txtNumber').style.border = '1px solid #7F9DB9';
		}		


	if(err == 1) {
		//alert('Az alábbi adatokat hibásan vagy egyáltalán nem adta meg:\t\t\t\t\t\n' + err);
		return false;
	} else {
		return true;
	}

}

function IsNumeric(sText) {
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}

function echeck(str) {

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	var mess = 0;
	
	if (str.indexOf(at)==-1){
	   return mess = 1;
	}
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   return mess = 1;
	}
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	   return mess = 1;
	}
	if (str.indexOf(at,(lat+1))!=-1){
		return mess = 1;
	}
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		return mess = 1;
	}
	if (str.indexOf(dot,(lat+2))==-1){
		return mess = 1;
	}
	if (str.indexOf(" ")!=-1){
		return mess = 1;
	}
	
	return mess;					
}