var isDHTML=0;
var isLayers=0;
var isAll=0;
var isID=0; 

if(document.getElementById) {isID=1; isDHTML=1;}
else {
	if(document.all) {isAll=1; isDHTML=1;}
	else{  
			browserVersion = parseInt(navigator.appVersion); 
			if((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) 
				{isLayers=1; isDHMTL=1;}
		 }
	  }
	  
	  
function findDOM(objectID,withStyle)
{
	if(withStyle == 1)
	{
		if(isID) {return(document.getElementById(objectID).style);}
		else{ 
			if(isAll){return(document.all[objectID].style);} 
			else{
				if(isLayers) {return(document.layers[objectID]);}
			     };
		     }
	}
	else
	{
		if(isID) { return (document.getElementById(objectID));}
		else{
				if(isAll) { return (document.all[objectID]);}
				else {
					if(isLayers) {return (document.layers[objectID]);}
					  };
			 }
	 }
}		


function rollover(objectID) {
	domStyle = findDOM(objectID,1)
	if(isAll||isID)
		{	
			if(domStyle.display=='block') domStyle.display='none';
			else domStyle.display='block';
		}
	else 
		{
			destination =objectID + '.html';
			self.location = destination;
		}
	return;
	}




function togglevisibility(objectID) {
	domStyle = findDOM(objectID,1)
	if(isAll||isID)
		{	
			if(domStyle.display=='block') domStyle.display='none';
			else domStyle.display='block';
		}
	else 
		{
			destination =objectID + '.html';
			self.location = destination;
		}
	return;
	}
	
function togglevisibilityoff(objectID) {
	domStyle = findDOM(objectID,1)
	if(isAll||isID)
		{	
			if(domStyle.display=='block') domStyle.display='none';
		}
	else 
		{
			destination =objectID + '.html';
			self.location = destination;
		}
	return;
}