function toggleDiv(divName, divName2) {
    thisDiv = document.getElementById(divName);
	thisDiv2 = document.getElementById(divName2);
	
	
	if (thisDiv) {
			if (thisDiv.style.display == "none") {
				thisDiv.style.display = "block";
			}
			else {
				thisDiv.style.display = "none";
			}
		}
		if (thisDiv2) {
			if (thisDiv2.style.display == "block") {
				thisDiv2.style.display = "none";
			}
			else {
				thisDiv2.style.display = "block";
			}
		}
}
/////// VALIDATE /////////
function validate_contact_form(theform) {
	var inp_name = theform.Naam;
		if(!default_check(inp_name)) { return false; }
	var inp_mail = theform.Emailadres;
		if(!echeck(inp_mail.value)) { 
    		inp_mail.style.borderColor="#ff0000";
			inp_mail.focus();
			return false; 
		} else {
    		inp_mail.style.borderColor="#CCCCCC";		
		}
}

/// DEFAULT CHECK
function default_check(input, default_col) {
	if(input!=undefined) {
		if(default_col==undefined) { default_col='#CCCCCC'; }
		if ((input.value==null)||(input.value=="")){
    		input.style.borderColor="#ff0000";
			input.focus()
			return false;
		} else {
	    	input.style.borderColor=default_col;
    	    return true;
		}
	} else {
		return true;
	}
}

// EMAIL CHECK
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){
		   alert("Please fill out a valid email address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Please fill out a valid email address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Please fill out a valid email address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Please fill out a valid email address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Please fill out a valid email address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Please fill out a valid email address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Please fill out a valid email address")
		    return false
		 }

    return true;
}