var imgs_an = new Array('../navig/p/stein_an.gif', '../navig/p/papier_an.gif', '../navig/p/schere_an.gif');
var imgs_aus = new Array('../navig/p/stein_aus.gif', '../navig/p/papier_aus.gif', '../navig/p/schere_aus.gif');

function randomDecision(id, num){
	var i = 0;
	var j = 0;
	var r = 0;
	var items = null;
	for(i=0;i<num;i++){
		items = document.getElementsByName(id+'_'+(i+1));
		for(j=0;j<items.length;j++){
			items[j].checked = false;
			document.getElementById('decision_img_'+(i+1)+'_'+(j+1)).src = imgs_aus[j];
		}
		r = parseInt(Math.random()*300)%3;
		items[r].checked = true;
		document.getElementById('decision_img_'+(i+1)+'_'+(r+1)).src = imgs_an[r];
	}
}

function chooseDecision(id, n){
	var items = document.getElementsByName('decision_'+id);
	var i = 0;
	for(i=0;i<items.length;i++){
		if(i==(n-1)){
			document.getElementById('decision_img_'+id+'_'+(i+1)).src = imgs_an[i];
			items[i].checked = true;
		}
		else{
			document.getElementById('decision_img_'+id+'_'+(i+1)).src = imgs_aus[i];
			items[i].checked = false;
		}
	}
}