function pop(URL,nome,winWidth,winHeight,winLeft,winTop,SB,RSZ) {
	if (winLeft < 0)
		winLeft = screen.width - winWidth + winLeft
	if (winTop < 0)
		winTop = screen.height - winHeight + winTop
	if (winTop == "cen")
		winTop = (screen.height - winHeight)/2 - 20
	if (winLeft == "cen")
		winLeft = (screen.width - winWidth)/2
	if (winLeft>0 & winTop>0)
		window.open(URL, nome, 'width='+winWidth+',height='+winHeight+',fullscreen=no,toolbar=no,status=no,menubar=no,scrollbars='+SB+',resizable='+RSZ+',directories=no,location=no,left='+winLeft+',top='+winTop+',screenX='+winLeft+',screenY='+winTop);
}
function strip_tags(str){
                      return str.replace(/<\/?[^>]+>/gi, '');
                }

String.prototype.trim = function() {
	return this.replace(/^\s+|\s+$/g,"");
}
String.prototype.ltrim = function() {
	return this.replace(/^\s+/,"");
}
String.prototype.rtrim = function() {
	return this.replace(/\s+$/,"");
}