function rollOver(divId, linkNum, baseClass, superLinkNum){
	var changeEl = document.getElementById(divId);
	if( changeEl != null ){
		var cLinks = changeEl.getElementsByTagName("span");
		if(cLinks.length == 0){
			cLinks = changeEl.getElementsByTagName("div");	
		}
		for(var i=0; i<cLinks.length; i++){
			if(cLinks[i].getAttribute("id") == linkNum){
				var cLink = cLinks[i].getElementsByTagName("a")[0]; 
				if(cLinks[i].getAttribute("class") == baseClass+"_cell"){
					cLinks[i].setAttribute("class", baseClass+"_cell_over");
				}
				
				if(cLinks[i].getAttribute("className") == baseClass+"_cell"){
					cLinks[i].setAttribute("className", baseClass+"_cell_over");
				}
				cLink.onmouseout = function(){
					if(cLinks[i].getAttribute("class") == baseClass+"_cell_over"){
						cLinks[i].setAttribute("class", baseClass+"_cell");
					}
					if(cLinks[i].getAttribute("className") == baseClass+"_cell_over"){
						cLinks[i].setAttribute("className", baseClass+"_cell");
					}
				}
				cLink.onclick = function(){
					var el = superLinkNum;
					var superEl = document.getElementById(superLinkNum);
					if(superEl != null){
						superEl.setAttribute("class", baseClass+"_click");
						superEl.setAttribute("className", baseClass+"_click");
					}
				}
				break;
			}
		}
	}
}

function setNavigation(linkNum, baseClass){
	var changeEl = document.getElementById(linkNum);
	if(changeEl != null){
		changeEl.setAttribute("class", baseClass+"_cell_click");
		changeEl.setAttribute("className", baseClass+"_cell_click");
	}
}