image1 = new Image(138,51);
image1.src="http://www.academicimpressions.com/images/learnRO.gif";
image2 = new Image(152,51);
image2.src="http://www.academicimpressions.com/images/customizeRO.gif";
image3 = new Image(155,51);
image3.src="http://www.academicimpressions.com/images/scanRO.gif";
image4 = new Image(151,51);
image4.src="http://www.academicimpressions.com/images/shareRO.gif";
image5 = new Image(152,51);
image5.src="http://www.academicimpressions.com/images/sponsorRO.gif";
image6 = new Image(141,51);
image6.src="http://www.academicimpressions.com/images/discoverRO.gif";

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		if(sfEls[i].className == 'learn')
		{
			sfEls[i].onmouseover=function() {
				activateLearnMenuWithDelay();
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				deactivateLearnMenuWithDelay();;
			}
		}
		else if(sfEls[i].className == 'customize')
		{
			sfEls[i].onmouseover=function() {
				activateCMenuWithDelay();
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				deactivateCMenuWithDelay();;
			}
		}
		else if(sfEls[i].className == 'share')
		{
			sfEls[i].onmouseover=function() {
				activateShareMenuWithDelay();
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				deactivateShareMenuWithDelay();;
			}
		}
		else if(sfEls[i].className == 'scan')
		{
			sfEls[i].onmouseover=function() {
				activateScanMenuWithDelay();
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				deactivateScanMenuWithDelay();;
			}
		}
		else if(sfEls[i].className == 'sponsor')
		{
			sfEls[i].onmouseover=function() {
				activateSMenuWithDelay();
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				deactivateSMenuWithDelay();;
			}
		}
		else if(sfEls[i].className == 'discover')
		{
			sfEls[i].onmouseover=function() {
				activateDMenuWithDelay();
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				deactivateDMenuWithDelay();;
			}
		}
		else
		{
			sfEls[i].onmouseover=function() {
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			}
		}
	}
	
	var sfEls = document.getElementById("learn").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" Lhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" Lhover\\b"), "");
		}
	}
	var sfEls = document.getElementById("customize").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" Chover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" Chover\\b"), "");
		}
	}
	var sfEls = document.getElementById("scan").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" SChover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" SChover\\b"), "");
		}
	}
	var sfEls = document.getElementById("share").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" SHhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" SHhover\\b"), "");
		}
	}
	var sfEls = document.getElementById("sponsor").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" SPhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" SPhover\\b"), "");
		}
	}
	var sfEls = document.getElementById("discover").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" Dhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" Dhover\\b"), "");
		}
	}
}
function activateMenuWithDelay() {
	var menu = document.getElementById();
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("activateMenu()", 100);
}

function activateMenu() {
	var menu = document.getElementById();
	menu.setAttribute('class', 'activeMenu');
}

function deactivateMenu() {
	var menu = document.getElementById();
	menu.setAttribute('class', 'inactiveMenu');
}

function deactivateMenuWithDelay() {
	var menu = document.getElementById();
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("deactivateMenu()", 180);
}

function activateLearnMenuWithDelay() {
	var menu = document.getElementById('learn');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("activateLearnMenu()", 100);
}

function activateLearnMenu() {
	var menu = document.getElementById('learn');
	menu.setAttribute('class', 'activeMenu');
}


function deactivateLearnMenu() {
	var menu = document.getElementById('learn');
	menu.setAttribute('class', 'inactiveMenu');
}

function deactivateLearnMenuWithDelay() {
	var menu = document.getElementById('learn');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("deactivateLearnMenu()", 180);
}
function activateDMenuWithDelay() {
	var menu = document.getElementById('discover');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("activateDMenu()", 100);
}

function activateDMenu() {
	var menu = document.getElementById('discover');
	menu.setAttribute('class', 'activeMenu');
}


function deactivateDMenu() {
	var menu = document.getElementById('discover');
	menu.setAttribute('class', 'inactiveMenu');
}

function deactivateDMenuWithDelay() {
	var menu = document.getElementById('discover');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("deactivateDMenu()", 180);
}

function activateSMenuWithDelay() {
	var menu = document.getElementById('sponsor');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("activateSMenu()", 100);
}

function activateSMenu() {
	var menu = document.getElementById('sponsor');
	menu.setAttribute('class', 'activeMenu');
}


function deactivateSMenu() {
	var menu = document.getElementById('sponsor');
	menu.setAttribute('class', 'inactiveMenu');
}

function deactivateSMenuWithDelay() {
	var menu = document.getElementById('sponsor');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("deactivateSMenu()", 180);
}

function activateShareMenuWithDelay() {
	var menu = document.getElementById('share');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("activateShareMenu()", 100);
}

function activateShareMenu() {
	var menu = document.getElementById('share');
	menu.setAttribute('class', 'activeMenu');
}


function deactivateShareMenu() {
	var menu = document.getElementById('share');
	menu.setAttribute('class', 'inactiveMenu');
}

function deactivateShareMenuWithDelay() {
	var menu = document.getElementById('share');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("deactivateShareMenu()", 180);
}

function activateScanMenuWithDelay() {
	var menu = document.getElementById('scan');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("activateScanMenu()", 100);
}

function activateScanMenu() {
	var menu = document.getElementById('scan');
	menu.setAttribute('class', 'activeMenu');
}


function deactivateScanMenu() {
	var menu = document.getElementById('scan');
	menu.setAttribute('class', 'inactiveMenu');
}

function deactivateScanMenuWithDelay() {
	var menu = document.getElementById('scan');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("deactivateScanMenu()", 180);
}

function activateCMenuWithDelay() {
	var menu = document.getElementById('customize');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("activateCMenu()", 100);
}

function activateCMenu() {
	var menu = document.getElementById('customize');
	menu.setAttribute('class', 'activeMenu');
}


function deactivateCMenu() {
	var menu = document.getElementById('customize');
	menu.setAttribute('class', 'inactiveMenu');
}

function deactivateCMenuWithDelay() {
	var menu = document.getElementById('customize');
	if (menu.timer) {
		clearTimeout(menu.timer);
	}
	menu.timer = setTimeout("deactivateCMenu()", 180);
}
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

addLoadEvent(sfHover);