TipMgr = new Ext.util.Observable();
Ext.apply(TipMgr,{
	currentTip: null,
	
	hidePrevious: function(){
		if(this.currentTip)
			this.currentTip.hide();	
	}
});
		
function help(thisTarget,url,title){
	TipMgr.hidePrevious();
	
	if (!thisTarget.hasHelpTip) {
		tip = new Ext.ToolTip({
			target: thisTarget,
			anchor: 'left',
			defaultAnchor:'left',
			maxWidth:600,
			autoShow: false,
			autoLoad:{
				url:'http://panel.exone.pl/help/get',
				params:{
					crossUrl: 'http://test.exone.pl/'+url
				},
				callback:function(){
					var anch = tip.getEl().select('.x-tip-anchor').item(0);
					if( anch.hasClass('x-tip-anchor-bottom') ){
						tip.getEl().setY( anch.getY() - tip.getEl().getHeight() );
						anch.setY( tip.getEl().getY() + tip.getEl().getHeight()-1 );
					}
				},
				scope:this
			},
			autoWidth: true,
			autoHeight: true,
			title:title,
			autoHide: false,
			closable: true,
			draggable: true
		});
		
		tip.show();
		tip.on('beforeshow',function(){
			TipMgr.hidePrevious();
			TipMgr.currentTip = this;
		},tip);
		
		
		thisTarget.hasHelpTip = true;
		thisTarget.helpTip = tip;
		TipMgr.currentTip = tip;
	}else{
		thisTarget.helpTip.show();
	}
}