function Evt(evt) {
      if(evt&&evt.x&&evt.source){
        this.evt=evt.evt;
        this.source=evt.source;
        this.x=evt.x;
        this.y=evt.y;
        this.key=evt.key;
      }else{
  			this.evt = evt ? evt : window.event; 
  			this.source = this.evt.target ? this.evt.target : this.evt.srcElement;
  			this.x = this.evt.pageX ? this.evt.pageX : (this.evt.clientX+(document.documentElement.scrollLeft || document.body.scrollLeft));
    		this.y = this.evt.pageY ? this.evt.pageY : (this.evt.clientY+(document.documentElement.scrollTop || document.body.scrollTop));
        if(navigator && navigator.vendor && navigator.vendor.indexOf('Apple')==0){
      //    this.y=window.innerHeight-this.evt.pageY+document.body.scrollTop+16;
        }
        if(!document.all)this.key=this.evt.which;else this.key=this.evt.keyCode;
      }
		}
		
		Evt.prototype.toString = function () {
			return "Evt [ x = " + this.x + ", y = " + this.y + " ]";
		};
		
		Evt.prototype.consume = function () {
			if (this.evt.stopPropagation) {
				this.evt.stopPropagation();
				this.evt.preventDefault();
			} else if (this.evt.cancelBubble) {
				this.evt.cancelBubble = true;
				this.evt.returnValue  = false;
			}
		};
		
		Evt.addEventListener = function (target,type,func,bubbles) {
			if (document.addEventListener) {
				target.addEventListener(type,function(e){ func(e);},bubbles);
			} else if (document.attachEvent) {
				target.attachEvent("on"+type,function(e){ func(e);},bubbles);
			} else {
				target["on"+type] = func;
			}
		};
	
		Evt.removeEventListener = function (target,type,func,bubbles) {
			if (document.removeEventListener) {
				target.removeEventListener(type,func,bubbles);
			} else if (document.detachEvent) {
				target.detachEvent("on"+type,func,bubbles);
			} else {
				target["on"+type] = null;
			}
		};
    
    Evt.dispatchEvent=function(target,type,bubbles){
      if (document.createEvent){
        var e=document.createEvent("Events");
        e.initEvent(type,bubbles,false);        
      }else if(document.createEventObject){
        var e=document.createEventObject();
      }else return;
      if(target.dispatchEvent) target.dispatchEvent(e);
      else if(target.fireEvent) target.fireEvent("on"+type,e);
    };

   
var DHTML = {
   setOpacity:  function(node,val) {
      if(node.filters){
  			try {	node.style.filter="alpha(opacity="+(val*100)+")";	} catch (e) { }
      }else{        
        try { node.style.opacity = val;} catch (e) { }
        try { node.style.MozOpacity = val;} catch (e) { }
      }
		},
   setElementSize: function (elmt,w,h){
       elmt.style["width"]=(w-5)+"px";
       elmt.style["height"]=(h-5)+"px";     
       var dif_w=elmt.offsetWidth-(w-5);  
       var dif_h=elmt.offsetHeight-(h-5);  
       if(dif_w>0&&dif_w<100){elmt.style["width"]=(w-dif_w)+"px";}else{elmt.style["width"]=w+"px";}
       if(dif_h>0&&dif_h<100){elmt.style["height"]=(h-dif_h)+"px";}else{elmt.style["height"]=h+"px";}
    },

   getSelectedText: function(){ 
     if (window.getSelection) return window.getSelection(); 
     else if (document.getSelection) return document.getSelection();
     else if (document.selection) return document.selection.createRange().text;
     else return;
   }
    
};