function showHide(itemname,action)
{
	obj = document.getElementById(itemname)
	switch(action)
	{
		case 'hide':
				obj.style.display='none';
			break;
		case 'show':
				obj.style.display='block';
			break;
	}	
}

function init()
{
	list = document.getElementsByTagName("input");
	// filter radio buttons
	radiobuttons = Array();

	for(var i=0;i<list.length;i++){
		if(list[i].type=="radio"){
		radiobuttons[radiobuttons.length]=list[i];
	}}
	//alert('test2');
	for(var i=0;i<radiobuttons.length;i++){
		if(radiobuttons[i].value == 'ja' && radiobuttons[i].checked==true)
		{
			if(radiobuttons[i].name.length > 11) cut = 2;
			else cut = 1;
			showHide('antw'+radiobuttons[i].name.substring(radiobuttons[i].name.length-cut,radiobuttons[i].name.length)+'_ja',"show");
		}
		//radiobuttons[radiobuttons.length]=list[i];
	}
	
	
}