//cambio imagen
function preCarga(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()');
		eval(imgObj+'.src = "'+imgSrc+'"');
	}
}

preCarga("out","img/credito.gif");
preCarga("over","img/credito_ov.gif");
preCarga("en_out","img/envia.gif");
preCarga("en_over","img/envia_ov.gif");

function swap(imgName,imgObj) {
	if (document.images) {
		document.images[imgName].src = eval(imgObj+".src");
	}
}

//envia a una amigo
function winPop(url,ventana,ancho,alto,scroll) {
    var pX = (740-ancho)/2;//(screen.width - ancho) / 2;
    var pY = (400-alto)/2;//(screen.height - alto) / 2;		
    var ventana = window.open(url,ventana,"width=" + ancho + ",height=" + alto + ",status=0,resizable=0,scrollbars="+ scroll +",location=0,toolbar=0,left=" + pX + ",top=" + pY + "");
}

//escribir flash
function writeFlash(movie,color){
	document.write('<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" WIDTH="740" HEIGHT="380" id="'+movie+'" ALIGN=""><PARAM NAME=movie VALUE="'+movie+'.swf"> <PARAM NAME=menu VALUE=false> <PARAM NAME=quality VALUE=high> <PARAM NAME=scale VALUE=noscale> <PARAM NAME=bgcolor VALUE=#'+color+'> <PARAM NAME=wmode VALUE=transparent> <EMBED src="'+movie+'.swf" menu=false quality=high scale=noscale bgcolor=#'+color+' WIDTH="740" HEIGHT="380" NAME="'+movie+'" ALIGN="" WMODE="transparent" TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer"></EMBED></OBJECT>');
}