function nav(id) {
if (document.all&&document.getElementById) {
navRoot = document.getElementById(id);
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {
this.className+=" over";
  }
  node.onmouseout=function() {
  this.className=this.className.replace(" over", "");
   }
   }
  }
 }
}







function changecss(theClass,element,value) { 
//documentation for this script at http://www.shawnolson.net/a/503/ 
var cssRules; 
if (document.all) { 
cssRules = 'rules'; 
} 
else if (document.getElementById) { 
cssRules = 'cssRules'; 
} 
for (var S = 0; S < document.styleSheets.length; S++){ 
for (var R = 0; R < document.styleSheets[S][cssRules].length; R++) { 
if (document.styleSheets[S][cssRules][R].selectorText == theClass) { 
document.styleSheets[S][cssRules][R].style[element] = value; 
} 
} 
} 
}

function navOn(num){
	
	if (num == 100){
	navOff();
	document.getElementById('nav01').className = 'on';	
	
	
	}else if(num == 200){
	navOff();
	document.getElementById('nav02').className = 'on';
	
	}else if(num == 300){
	navOff();
	document.getElementById('nav03').className = 'on';
		
	}else if(num == 400){
	navOff();
	document.getElementById('nav04').className = 'on';
	
	}else if(num == 500){
	navOff();
	document.getElementById('nav05').className = 'on';
	
	}else if(num == 501){
	parent.parent.document.getElementById('nav03').className = 'off';
	parent.parent.document.getElementById('nav05').className = 'on';
	
	}else if(num == 600){
	navOff();
	document.getElementById('nav06').className = 'on';
	
	}else if(num == 700){
	navOff();
	document.getElementById('nav07').className = 'on';
	

	
	
	}
	}
	
function navOff(){
	document.getElementById('nav01').className = 'off';
	document.getElementById('nav02').className = 'off';
	document.getElementById('nav03').className = 'off';
	document.getElementById('nav04').className = 'off';
	document.getElementById('nav05').className = 'off';
	document.getElementById('nav06').className = 'off';
	document.getElementById('nav07').className = 'off';
	
	}