function OpenBrWindow(theURL,winName,features, myWidth, myHeight, isCenter) { //v3.0
	if(window.screen)if(isCenter)if(isCenter=="true"){
		var myLeft = (screen.width-myWidth)/2;
		var myTop = (screen.height-myHeight)/2;
		features+=(features!='')?',':'';
		features+=',left='+myLeft+',top='+myTop;
	}
	window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);
}

function AbrirVentana(par1, par2) {

	//window.open('http://www.carvica.com.ve/chat/chat.asp','_blank', 'menubar=0,resizable=0,location=0,status=0,scrollbars=0,directories=0,width=700,height=470') 
	OpenBrWindow(par1,par2,'menubar=0,resizable=1,location=0,status=0,scrollbars=0,directories=0',screen.width, screen.height,'true')
}