function win2(){ 
	 
	  
	var insertData = '';
      insertData += '<iframe frameborder="0" height="450" hspace="0" vspace="0" name="contactus" scrolling="no" src="contact.htm" width="1000" align="left"></iframe> ';
	  
      document.getElementById('contact-pane').innerHTML = insertData;
}

function win3() {
	prevStuff = document.getElementById("contact-pane"); 
	 
		if(prevStuff.style.display == "block") {
				prevStuff.style.display = "none"
		} else {
			prevStuff.style.display = "none"
		}
	
}