var Tooltip=Class.create();
Tooltip.prototype={initialize:function(element,tool_tip){var options=Object.extend({default_css:true,margin:"0px",border:"1px solid #444",padding:"5px",backgroundColor:"#eee",min_distance_x:5,min_distance_y:5,delta_x:0,delta_y:0,zindex:1000},arguments[2]||{});
this.element=$(element);
this.options=options;
this.tool_tip=$(document.createElement("div"));
document.body.appendChild(this.tool_tip);
this.tool_tip.addClassName("tooltip");
this.tool_tip.appendChild(document.createTextNode(tool_tip));
this.tool_tip.hide();
this.eventMouseOver=this.showTooltip.bindAsEventListener(this);
this.eventMouseOut=this.hideTooltip.bindAsEventListener(this);
this.eventMouseMove=this.moveTooltip.bindAsEventListener(this);
this.registerEvents()
},destroy:function(){Event.stopObserving(this.element,"mouseover",this.eventMouseOver);
Event.stopObserving(this.element,"mouseout",this.eventMouseOut);
Event.stopObserving(this.element,"mousemove",this.eventMouseMove)
},registerEvents:function(){Event.observe(this.element,"mouseover",this.eventMouseOver);
Event.observe(this.element,"mouseout",this.eventMouseOut);
Event.observe(this.element,"mousemove",this.eventMouseMove)
},moveTooltip:function(event){Event.stop(event);
var mouse_x=Event.pointerX(event);
var mouse_y=Event.pointerY(event);
var dimensions=Element.getDimensions(this.tool_tip);
var element_width=dimensions.width;
var element_height=dimensions.height;
if((element_width+mouse_x)>=(this.getWindowWidth()-this.options.min_distance_x)){mouse_x=mouse_x-element_width;
mouse_x=mouse_x-this.options.min_distance_x
}else{mouse_x=mouse_x+this.options.min_distance_x
}if((element_height+mouse_y)>=(this.getWindowHeight()-this.options.min_distance_y)){mouse_y=mouse_y-element_height;
mouse_y=mouse_y-this.options.min_distance_y
}else{mouse_y=mouse_y+this.options.min_distance_y
}this.setStyles(mouse_x,mouse_y)
},showTooltip:function(event){Event.stop(event);
this.moveTooltip(event);
new Element.show(this.tool_tip)
},setStyles:function(x,y){Element.setStyle(this.tool_tip,{position:"absolute",top:y+this.options.delta_y+"px",left:x+this.options.delta_x+"px",zindex:this.options.zindex});
if(this.options.default_css){Element.setStyle(this.tool_tip,{margin:this.options.margin,padding:this.options.padding,backgroundColor:this.options.backgroundColor,zindex:this.options.zindex})
}},hideTooltip:function(event){new Element.hide(this.tool_tip)
},getWindowHeight:function(){var innerHeight;
if(navigator.appVersion.indexOf("MSIE")>0){innerHeight=document.body.clientHeight
}else{innerHeight=window.innerHeight
}return innerHeight
},getWindowWidth:function(){var innerWidth;
if(navigator.appVersion.indexOf("MSIE")>0){innerWidth=document.body.clientWidth
}else{innerWidth=window.innerWidth
}return innerWidth
}};