var preloadFlag = false;
function preloadImages() {
if (document.images)  {
	// load images
	

	definedramaoff=new Image();
	definedramaoff.src = '../bnb/butor1.gif';			
	definedramaon=new Image();
	definedramaon.src = '../bnb/butnr1.gif';
	
	writingoff=new Image();
	writingoff.src = '../bnb/butor4.gif';			
	writingon=new Image();
	writingon.src = '../bnb/butnr4.gif';
	
	gamesmethodsoff=new Image();
	gamesmethodsoff.src = '../bnb/butor5.gif';			
	gamesmethodson=new Image();
	gamesmethodson.src = '../bnb/butnr5.gif';
	
	scriptsoff=new Image();
	scriptsoff.src = '../bnb/butor6.gif';			
	scriptson=new Image();
	scriptson.src = '../bnb/butnr6.gif';
	
	charactersoff=new Image();
	charactersoff.src = '../bnb/butor7.gif';			
	characterson=new Image();
	characterson.src = '../bnb/butnr7.gif';
	
	sociodramaoff=new Image();
	sociodramaoff.src = '../bnb/butor8.gif';			
	sociodramaon=new Image();
	sociodramaon.src = '../bnb/butnr8.gif';
	
	dramatherapyoff=new Image();
	dramatherapyoff.src = '../bnb/butor10.gif';			
	dramatherapyon=new Image();
	dramatherapyon.src = '../bnb/butnr10.gif';
	
	psychodramaoff=new Image();
	psychodramaoff.src = '../bnb/butor11.gif';			
	psychodramaon=new Image();
	psychodramaon.src = '../bnb/butnr11.gif';
	
	dramaturgyoff=new Image();
	dramaturgyoff.src = '../bnb/butor12.gif';			
	dramaturgyon=new Image();
	dramaturgyon.src = '../bnb/butnr12.gif';
	
	linksoff=new Image();
	linksoff.src = '../bnb/butor9.gif';			
	linkson=new Image();
	linkson.src = '../bnb/butnr9.gif';	

	preloadFlag = true;
	window.focus();
		}
}


// function that does MouseOvers and MouseOut calls


function buttonChange(imName,imSource) {
		if (document.images && (preloadFlag == true)) {
		document[imName].src=eval(imSource + ".src");
	}
}