function inArray(needle, hay) {
	for(var n = 0 ; n < hay.length ; n++) {
		if(hay[n] == needle) {
			return true;
		}
	}
	return false;
}
function setImage(t, i) {
	
	if (document.getElementById(t + '_' + i).className.indexOf('active') > -1){
		unCheck(i);
		document.getElementById(t + '_' + i).className ='mthumb';
		document.getElementById("ch" + t + '_' + i).checked = false;
	} else {
		if(doCheck(i) ) {
			document.getElementById(t + '_' + i).className ='product_thumb_active';
			document.getElementById("ch" + t + '_' + i).checked = true;
		} else {
			document.getElementById("ch" + t + '_' + i).checked = false;
		}
	}
	
}
function unCheck(p) {
	var newArray = Array();
	for (i=0;i<=prods.length-1;i++) {
		id = prods[i];
		if (id != p) {
			newArray[newArray.length] = id;
		}
	}
	prods = newArray;
}

function doCheck(p) {
	if(prods.length>2) {
		alert(max_prods);
		return false;
	} else {
		prods[prods.length] = p;
		return true;
	}
}

function checkform(t, u) {
	if(prods.length == 0) {
		alert(min_prods);
	} else {
		var producten ="" ;
		for (i=0;i<=prods.length-1;i++){
			if(i>0) {
				producten += ",";
			} 
			producten += (prods[i] +'');
		}
		document.location.href = u + "&producten=" + producten;
	}
}

function clearpage() {
	i = document.getElementsByTagName("input");
	for(j=0;j<i.length;j++) {
		if(i[j].type == "checkbox") {
			
			i[j].checked=false;
		}
	}
}