// clase para detección de navegador
function lib_bwcheck(){ //Browsercheck (needed)
        this.ver=navigator.appVersion; this.agent=navigator.userAgent
        this.dom=document.getElementById?1:0
        this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
        this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;
        this.ie4=(document.all && !this.dom)?1:0;
        this.ie=this.ie4||this.ie5||this.ie6
        this.mac=this.agent.indexOf("Mac")>-1
        this.opera5=this.agent.indexOf("Opera 5")>-1
        this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
        this.ns4=(document.layers && !this.dom)?1:0;
        this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5 || this.dom)
        return this
}
var bw=new lib_bwcheck()


// popup windows
W_handle = new Object;
W_ID = 0;

function popup (html) {
	var width = 640 ;
	var height = 480 ;
	var features = 'width=' + width + ',height=' + height ;
	
	if(window.screen){
		var myLeft = (screen.width - width)/2;
		var myTop = (screen.height - height)/2;
		features += (features!='')?',':'';
		features += ',left='+myLeft+',top='+myTop;
	}
	W_handle = window.open(html, "winhtml", ",,,,,scrollbars,," + features);
	if(parseInt(navigator.appVersion) >= 4){
		W_handle.window.focus () ;
	}
}

function _blank (html) {
	window.open(html) ;
}

// change languaje
function changeLanguaje (lang) {
	var frm = bw.ie4?document.all['formLanguaje']:document.getElementById('formLanguaje') ;
	frm.Lang.value = lang ;
	frm.Url.value = window.location ;
	frm.submit () ;	
}