//CHECK FORMS

function checkWaarden(form_id, fouttext, kleur) {
	if (!form_id) form_id = "formulier";
	var form = document.forms[form_id];
	var fouten = false;

	if(jsRequired != '') {
		requireds = jsRequired.split(";");
		for(x=0; x<requireds.length ;x++) {
			if(form[requireds[x]].value.length != ""){
				//form[requireds[x]].style.borderColor = "";
				form[requireds[x]].className = "";
			} else { fouten = true;
				//form[requireds[x]].style.borderColor = kleur;
				form[requireds[x]].className = "req";
			}
		}
	}
	/*if (jsNRequired != '') {
		requireds = jsNRequired.split(";");
		for (x=0; x<requireds.length ;x++) {
			if(form[requireds[x]].value.length != ""  && IsNumeric(form[requireds[x]].value)){
				form[requireds[x]].style.borderColor = "";
			} else { fouten = true;
				form[requireds[x]].style.borderColor = kleur;
			}
		}
	}*/
	if(jsERequired != '') {
		requireds = jsERequired.split(";");
		for(x=0; x<requireds.length ;x++) {
			if(form[requireds[x]].value.length != ""  && echeck(form[requireds[x]].value)){
				//form[requireds[x]].style.borderColor = "";
				form[requireds[x]].className = "";
			} else { fouten = true;
				//form[requireds[x]].style.borderColor = kleur;
				form[requireds[x]].className = "req";
			}
		}
	}

	if(fouten) { document.getElementById("error").innerHTML = fouttext; }
	//else { /*form.submit();*/ }
	return fouten;
}

// OTHER

function IsNumeric(string) {
	if (!string) return false; // als de string leeg is
	var Chars = "0123456789/-."; // mogelijke karakters in de string
	for (var i = 0; i < string.length; i++) { // alle karakters overlopen van de string
	   if (Chars.indexOf(string.charAt(i)) == -1) // als het zoveelste karakter in de string NIET in char voorkomt
		  return false;
	}
	return true;
}

function echeck(str) {
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)

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

	return true;
}

function disableEnterKey(e) {
	var key;

	if(window.event)
		key = window.event.keyCode; //IE
	else
		key = e.which; //firefox

	return (key != 13);
}