need to close iframe at runtime and create new one after i click url

[subbu sk]

Hi all, i had one url ,like see videos. if i click the url then one div tag which contains iframe will be opened.and i had one close button which is used to hide the div tag. if i click the close button then div tag will be closed but not the iframe. i need to close the iframe also. and i click the url, second time the same iframe will be created. at runtime by using javascript. Thanks in advance

Thanks Subbu.