/*-------    Bildnavigation auf den Contentseiten   ---------*/	

	function setContent ( nr ){ 
		document.getElementById("content-1").style.display = "none";
		document.getElementById("content-2").style.display = "none";
		document.getElementById("content-3").style.display = "none";
		document.getElementById("content-4").style.display = "none";
		document.getElementById("content-5").style.display = "none";
		document.getElementById("content-"+nr).style.display = "block";
	}


	function clearDefault ( defaultValue, thisInput ){ 
		//alert( thisInput.value );		
		if(thisInput.value==defaultValue)thisInput.value='';
	}
	
	function setDefault ( defaultValue, thisInput ){
		//alert( thisInput.value );		
		if(thisInput.value=='') thisInput.value=defaultValue;
	}