if (document.images) {
	var memschools_over = new Image(); memschools_over.src = "/images/su4_memschools-over.gif"
	var memschools_out = new Image(); memschools_out.src = "/images/su4_memschools.gif"

	var teacherres_over = new Image(); teacherres_over.src = "/images/su4_teacherres-over.gif"
	var teacherres_out = new Image(); teacherres_out.src = "/images/su4_teacherres.gif"

	var studentres_over = new Image(); studentres_over.src = "/images/su4_studentres-over.gif"
	var studentres_out = new Image(); studentres_out.src = "/images/su4_studentres.gif"
	
	var eprojlogin_over = new Image(); eprojlogin_over.src = "/images/su5_eprojlogin-over.gif"
	var eprojlogin_out = new Image(); eprojlogin_out.src = "/images/su5_eprojlogin.gif"

	var ecomlogin_over = new Image(); ecomlogin_over.src = "/images/su5_ecomlogin-over.gif"
	var ecomlogin_out = new Image(); ecomlogin_out.src = "/images/su5_ecomlogin.gif"
	
	var nav1_over = new Image(); nav1_over.src = "/images/su4_sub_arrow-over.gif"
	var nav1_out = new Image(); nav1_out.src = "/images/su4_sub_arrow.gif"

	var nav2_over = new Image(); nav2_over.src = "/images/su4_sub_arrow-over.gif"
	var nav2_out = new Image(); nav2_out.src = "/images/su4_sub_arrow.gif"

	var nav3_over = new Image(); nav3_over.src = "/images/su4_sub_arrow-over.gif"
	var nav3_out = new Image(); nav3_out.src = "/images/su4_sub_arrow.gif"

	var nav4_over = new Image(); nav4_over.src = "/images/su4_sub_arrow-over.gif"
	var nav4_out = new Image(); nav4_out.src = "/images/su4_sub_arrow.gif"

	var nav5_over = new Image(); nav5_over.src = "/images/su4_sub_arrow-over.gif"
	var nav5_out = new Image(); nav5_out.src = "/images/su4_sub_arrow.gif"

	var bullet1_over = new Image(); bullet1_over.src = "/images/su4_bullet-over.gif"
	var bullet1_out = new Image(); bullet1_out.src = "/images/su4_bullet.gif"
	
	var bullet2_over = new Image(); bullet2_over.src = "/images/su4_bullet-over.gif"
	var bullet2_out = new Image(); bullet2_out.src = "/images/su4_bullet.gif"

	var bullet3_over = new Image(); bullet3_over.src = "/images/su4_bullet-over.gif"
	var bullet3_out = new Image(); bullet3_out.src = "/images/su4_bullet.gif"

	var bullet4_over = new Image(); bullet4_over.src = "/images/su4_bullet-over.gif"
	var bullet4_out = new Image(); bullet4_out.src = "/images/su4_bullet.gif"

	var bullet5_over = new Image(); bullet5_over.src = "/images/su4_bullet-over.gif"
	var bullet5_out = new Image(); bullet5_out.src = "/images/su4_bullet.gif"
}

function act(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + '_over.src')
	}
}

function inact(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + '_out.src')
	}
}

// Check the browser
var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;    // true if we're on ie
var isWin = (navigator.appVersion.indexOf("Windows") != -1) ? true : false; // true if we're on windows