new Image().src = "/images/images/ct_minus.gif";
op="/images/images/ct_minus.gif";
cl="/images/images/ct_plus.gif";

function dd_menu(obj){
	if(document.getElementById){document.getElementById(obj).style.display=='none'?document.getElementById(obj).style.display='':document.getElementById(obj).style.display='none';
	document.getElementById(obj+"i").src.indexOf('ct_plus')>0?document.getElementById(obj+"i").src=op:document.getElementById(obj+"i").src=cl}
	else if(document.all){document.all(obj).style.display=='none'?document.all(obj).style.display='':document.all(obj).style.display='none';
	document.all(obj+"i").src.indexOf('ct_plus')>0?document.all(obj+"i").src=op:document.all(obj+"i").src=cl}
	else if(document.layers){document.layers[obj].display=='none'?document.layers[obj].display='':document.layers[obj].display='none';
	document.layers[obj+"i"].src.indexOf('ct_plus')>0?document.layers[obj+"i"].src=op:document.layers[obj+"i"].src=cl}
}