function s_1()
	{
window.open("s_1.html","windowname","height=640,width=840,scrollbars")
	}
function s_2()
	{
window.open("s_2.html","windowname","height=640,width=840,scrollbars")
	}
function s_3()
	{
window.open("s_3.html","windowname","height=640,width=840,scrollbars")
	}
function s_4()
	{
window.open("s_4.html","windowname","height=640,width=840,scrollbars")
	}
function s_5()
	{
window.open("s_5.html","windowname","height=640,width=840,scrollbars")
	}
function s_6()
	{
window.open("s_6.html","windowname","height=640,width=840,scrollbars")
	}