function openWin(wval,hval,page,wname) {
	var theSpecs = "toolbar=no,width=" + wval + ",height=" + hval + ",status=no,scrollbars=no,resizable=no,menubar=no";
	newWin=window.open(page,wname,theSpecs);
}

//browser detection:

var isNN4, isIE4, isDOM;

if (document.getElementById) {
	isDOM = true;               //W3C DOM browsers including NN6 & IE5+
}
else if (parseInt(navigator.appVersion) >=4) {
	if (navigator.appName == "Netscape") {
		isNN4 = true;
	}
	if (navigator.appName == "Microsoft Internet Explorer") {
		isIE4 = true;
	}
}
	
function showdiv(id) {
	if (isDOM) {
		var theCaption = document.getElementById(id);
		theCaption.style.visibility = "visible";
	} else if (isNN4) {
		 document.layers[id].visibility = "show";
	} else if (isIE4) {
		document.all[id].style.visibility = "visible";
	}
}
  
function hidediv(id) {        //hide all captions except for "caption" + id.

	if (isDOM) {
		for (var i = 0; i < divsbeg.length; i++) {
			if (i != id) {	
				document.getElementById(divsbeg[i]).style.visibility = "hidden";
			}
		}
	} else if (isNN4) {
		for (var i = 0; i < divsbeg.length; i++) {
			if (i != id) {
				document.layers[divsbeg[i]].visibility = "hide";
			}
		}
		
	} else if (isIE4) {
		for (var i = 0; i < divsbeg.length; i++) {
			if (i != id) {	
				document.all[divsbeg[i]].style.visibility = "hidden";
			}
		}
	}
	
}

  
function hidedivS(id) {        //hide all captions except for "caption" + id.

	if (isDOM) {
		for (var i = 0; i < divsspecial.length; i++) {
			if (i != id) {	
				document.getElementById(divsspecial[i]).style.visibility = "hidden";
			}
		}
	} else if (isNN4) {
		for (var i = 0; i < divsspecial.length; i++) {
			if (i != id) {
				document.layers['divspecialty'].layers['divspecblurb'].layers[divsspecial[i]].visibility = "hide";
			}
		}
		
	} else if (isIE4) {
		for (var i = 0; i < divsspecial.length; i++) {
			if (i != id) {	
				document.all[divsspecial[i]].style.visibility = "hidden";
			}
		}
	}
	
}

function hidedivI(id) {        //hide all captions except for "caption" + id.

	if (isDOM) {
		for (var i = 0; i < divsint.length; i++) {
			if (i != id) {	
				document.getElementById(divsint[i]).style.visibility = "hidden";
			}
		}
	} else if (isNN4) {
		for (var i = 0; i < divsint.length; i++) {
			if (i != id) {
				document.layers[divsint[i]].visibility = "hide";
			}
		}
		
	} else if (isIE4) {
		for (var i = 0; i < divsint.length; i++) {
			if (i != id) {	
				document.all[divsint[i]].style.visibility = "hidden";
			}
		}
	}
	
}