var iHeight = 110;
var collapseStep = 10;
var aniSpeed = 2;

function minimisepanel(objDiv){
	var t = parseInt( YAHOO.util.Dom.getStyle(objDiv, 'height'));
	
	YAHOO.util.Dom.setStyle(objDiv, 'opacity',t/iHeight );
	
	if(t>0){	
		t=t-collapseStep ;
			if(t<=0){
				YAHOO.util.Dom.setStyle(objDiv, 'display','none');
			}
			YAHOO.util.Dom.setStyle(objDiv, 'height',t);
			setTimeout( "minimisepanel('"+objDiv+"');",aniSpeed);
	}
}


function maximisepanel(objDiv){
	
	YAHOO.util.Dom.setStyle(objDiv, 'display','block');
	
	var t = parseInt( YAHOO.util.Dom.getStyle(objDiv, 'height'));
	
	YAHOO.util.Dom.setStyle(objDiv, 'opacity',t/iHeight );
	
	if(t<=(iHeight-collapseStep)){	
		t=t+collapseStep ;
		YAHOO.util.Dom.setStyle(objDiv, 'height',t);
		setTimeout( "maximisepanel('"+objDiv+"');",aniSpeed);
	}
}


function ShowHide(objID,imgref){
	if (YAHOO.util.Dom.getStyle(objID, 'display')=='block'){
		minimisepanel(objID);
		imgref.src="images/downarr.jpg";
		return;
	}
	
	maximisepanel(objID);
	imgref.src="images/uparr.jpg";
}