function ibsa() {
document.write('<ifr'+'ame style="width:770px; height:',hea,'px; z-index:0;" fra'+'meborder="0" scrolling="no" src="',sra,'"></if'+'rame>');
}

function iberv() {
document.write('<ifr'+'ame style="width:620px; height:',hea,'px; z-index:0;" fra'+'meborder="0" scrolling="no" src="',sra,'"></if'+'rame>');
}

function ibcar() {
document.write('<ifr'+'ame style="width:620px; height:',hea,'px; z-index:0;" fra'+'meborder="0" scrolling="no" src="',sra,'"></if'+'rame>');
}