<!--
//checkForm fields when form is sent off
function checkform(){
	if (document.fContest.fContNachname.value == "" || document.fContest.fContVorname.value == "" || document.fContest.fContEmail == ""){
		alert("Sie haben nicht alle mit einem (*) gekennzeichneten Felder ausgef�llt.");
		return false;
	} else {
		return true;
	}
}

//set div visibility for the risk analyses element
function setVisible(divID){
	document.getElementById("contest_0").style.display = "none";
	document.getElementById("contest_1").style.display = "none";
	document.getElementById("contest_2").style.display = "none";
	document.getElementById("contest_3").style.display = "none";
	document.getElementById("contest_4").style.display = "none";
	document.getElementById("contest_5").style.display = "none";
	document.getElementById("contest_6").style.display = "none";
	document.getElementById("contest_7").style.display = "none";
	document.getElementById("contest_8").style.display = "none";
	document.getElementById("contest_9").style.display = "none";
	document.getElementById(divID).style.display = "block";
}

//global variables that can be used by ALL the function son this page.
var inputs;
var imgFalse = 'img/truePlain.png';
var imgTrue = 'img/true_1.png';

//this function runs when the page is loaded, put all your other onload stuff in here too.
function init() {
	replaceChecks();
}

//replace input radio or checkbox with images and set functionality
function replaceChecks() {
	
	//get all the input fields on the page
	inputs = document.getElementsByTagName('input');

	//cycle trough the input fields
	for(var i=0; i < inputs.length; i++) {

		//check if the input is a checkbox
		if(inputs[i].getAttribute('type') == 'checkbox') {
			
			//create a new image
			var img = document.createElement('img');
			
			//check if the checkbox is checked
			if(inputs[i].checked) {
				img.src = imgTrue;
			} else {
				img.src = imgFalse;
			}

			//set image ID and onclick action
			img.id = 'checkImage'+i;
			//set image 
			img.onclick = new Function('checkChange('+i+')');
			//place image in front of the checkbox
			inputs[i].parentNode.insertBefore(img, inputs[i]);
			
			//hide the checkbox
			inputs[i].style.display='none';
		}
	}
}

//change the checkbox status and the replacement image
function checkChange(i) {

	if(inputs[i].checked) {
		inputs[i].checked = '';
		document.getElementById('checkImage'+i).src=imgFalse;
	} else {
		inputs[i].checked = 'checked';
		document.getElementById('checkImage'+i).src=imgTrue;
	}
}
window.onload = init;

-->