function maxwidth () {
	// Hack para que aparezca s? o s? el scrollbar en Mozilla
	addCss( 'html', 'overflow-y: scroll' );

	w = document.body.clientWidth;
	if( w > 950 ) w = 950;
	if( w < 780 ) w = 780;
	addCss( '#main', 'width: '+w+'px !important' );
	addCss( '#cabecera', 'width: '+w+'px !important' );
	addCss( '#menu', 'width: '+w+'px !important' );
//	addCss( '.contenido', 'width: '+(w-141)+'px !important' );

}

function addCss(selector,rules) {
	if (document.styleSheets[0]) {
		ds = document.styleSheets[0];
		if (ds.cssRules) { l=ds.cssRules.length; }
		if (ds.rules) { l=ds.rules.length; }

		ir = (ds.insertRule)
				? ds.insertRule(selector+" {"+rules+"}",l)
				: ds.addRule(selector,rules,l);
		return (l);
	}
	return false;
}


var EventMgr = // avoid leaking event handlers, crossbrowser version
{
  _registry:null,
  initialize:function() {
    if(this._registry == null) {
      this._registry = [];
      EventMgr.add(window, "_unload", this.cleanup);
    }
  },
  add:function(o, t, fn, uc) {
    this.initialize();
    if(typeof o == "string")
      o = d.g(o);
    if(o == null || fn == null)
      return false;
    if(t == "unload") {
      // call later when cleanup is called. don't hook up
      this._registry.push({obj:o, type:t, fn:fn, useCapture:uc});
      return true;
    }
    var realType = t=="_unload"?"unload":t;

	this.realAdd(o,realType,fn,uc);

    this._registry[this._registry.length] = {obj:o, type:t, fn:fn, useCapture:uc};

    return true;
  },
  realAdd:function(o,realType,fn,uc) {
  	if (realType == "load") {
		fn = EventMgr.init;
  		this.realAdd(o,"error",fn,uc);
		this.realAdd(o,"DOMContentLoaded", fn, false);
		/* for Internet Explorer */
		/*@cc_on @*/
		/*@if (@_win32)
		var proto = "javascript:void(0)";
		if (location.protocol == "https:") proto = "src=//0";
		document.write("<scr"+"ipt id=__ie_onload defer src=" + proto + "><\/scr"+"ipt>");
		if (document.getElementById) {
			var script = document.getElementById("__ie_onload");
			script.onreadystatechange = function() {
				if (this.readyState == "complete") {
					fn();
				}
			};
		}
		/*@end @*/
		/* for Safari */
		if (/KHTML|WebKit/i.test(navigator.userAgent)) { // sniff
		    this._timer = setInterval(function() {
		        if (/loaded|complete/.test(document.readyState)) {
					clearInterval(this._timer);
					delete this._timer;
		            fn(); // call the onload handler
		        }
		    }, 10);
		}
	}
	if (o.addEventListener)
		o.addEventListener(realType,fn,uc);

    else if (o.attachEvent)
		o.attachEvent('on' + realType, fn);

	else {
		o["on"+realType] = fn;
		if (o["on"+realType] != fn) {
			alert("Error adding listener\nObject:"+o+" ID:"+o.id+" Name:"+o.name+" TagName:"+o.tagName+"\nEvent:"+realType);
		}
	}
  },
  init:function () {
	// quit if this function has already been called
	if (arguments.callee.done) return;
	// flag this function so we don't do the same thing twice
	arguments.callee.done = true;
	// execute each function in the stack in the order they were added
	for (var i=0;i < EventMgr._registry.length;i++) {
		if (EventMgr._registry[i].type=="load") {
			p=EventMgr._registry[i].fn();
		}
	}
  },
  remove:function (o,type,fn,uc) {
		if (o.removeEventListener)
			o.removeEventListener(type,fn,uc);
		else if (o.detachEvent)
			o.detachEvent("on" + type,fn);
		else {
//			o["on"+type] = window.undefined;
//			if (o["on"+type]!=window.undefined) return false;
		}
		return true;
	},
  cleanup:function() {
    for(var i = 0; i < EventMgr._registry.length; i++)
      with(EventMgr._registry[i])
        if(type=="unload")
          fn();
        else {
          if(type == "_unload") type = "unload";
          EventMgr.remove(obj,type,fn,useCapture);
        }
    delete EventMgr._registry;
  }
};

EventMgr.add(window,"load",maxwidth);