/* Navigation scripts used for College of Acupuncture
& Therapeutics Inc.
By:			Marlon A. Griffith
Modified:	Fri, Mar. 7, 2003 */

/* utility function to check browser compliant type */
function checkBrowser(){
	if( document.body ) {
		alert("This is a W3C DOM 1.0 compliant browser");
	}
	if( document.layers ) {
		alert("This is a Netscape 4.x compliant browser");
	}
	if( document.all ){
		alert("This is an IE 3.x compatible browser");
	}
	return;
}

/* if cursor hovers over an element, change its style
 Decided to use css instead */
function onLevelOne( el, infoWanted ){
	if( document.body ) {
		el.style.backgroundColor = "blue";
		el.style.color = "red";
		el.style.textDecoration = "underline";
		displayInfo( infoWanted );
	} else if( document.layers ) {
		alert("This is a Netscape 4.x compliant browser");
	} else if( document.all ){
		alert("This is an IE 3.x compatible browser");
	}
	return;
}

/* if cursor leaves an element, return its style to before
 Decided to use css instead */
function notOnLevelOne( el, infoWanted ){
	if( document.body ) {
		el.style.backgroundColor = "#660033";
		el.style.color = "white";
		el.style.textDecoration = "none";
		displayInfo( infoWanted );
	} else if( document.layers ) {
		alert("This is a Netscape 4.x compliant browser");
	} else if( document.all ){
		alert("This is an IE 3.x compatible browser");
	}
	return;
}

// change info section depending on link cursor is over
function displayInfo( infoIdName ){
	try {
		// document.childNodes is not recognized by Opera 5.x for Mac!
		if( document.getElementById && document.childNodes ) {
			// Hide any info that is displayed
			var infoSectNode = document.getElementById( "infoSect" );
			var kids = infoSectNode.childNodes;
			for( i=0; i<kids.length; i++ ){
				// alert( "kids.length is " + kids.length );
				if( kids[i].nodeType == 1 ) // a Node.ELEMENT_NODE {
					// alert( "kids[i].style.display is " + kids[i].style.display );
					if( kids[i].style.display == "" ){
						kids[i].style.display = "none";
					}
			}

			// Unhide the info of the link the mouse is over or clicked
			var infoIdNode = document.getElementById( infoIdName );
			infoIdNode.style.display = "";
			return;

		} else if( document.layers ) {
			// place Netscape 4.x compatible code here
			// but for now won't do anything.
			return false;
		} else if( document.all ){
			// place IE 3.x compatible code here
			// but for now won't do anything.
			return false;
		} else {
			return false;
		}

	} catch (err) {
	    alert("Error is" + err );
		return false;
	}
}