// JavaScript Document
  	function changeSource1()
	{
		document.getElementById("frame1").src="comm/frame_l.html";
		document.getElementById("edu_img").src="edu/edu_frame_a.html"
	}
	function changeSource2()
	{
		document.getElementById("frame1").src="comm/frame_p.html";
		document.getElementById("edu_img").src="edu/edu_frame_b.html"
	}
	function changeSource3()
	{
		document.getElementById("frame1").src="comm/frame_o.html";
		document.getElementById("edu_img").src="edu/edu_frame_c.html"
	}
	function changeSource4()
	{
		document.getElementById("frame1").src="comm/frame_q.html";
		document.getElementById("edu_img").src="edu/edu_frame_d.html"
	}