// *********** Create A Food Web **************
<!-- hide script from old browsers
var browser_type=navigator.appName
var browser_version=parseInt(navigator.appVersion)

function dhtml2() {
	if (browser_type=="Netscape"&&browser_version<5) {                                                     
		window.open('foodweb-NS.htm', 'new','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,status=no');    
} 

	else if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
		
			window.open('foodweb.htm', 'webby','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 

	else if (navigator.userAgent.indexOf("Firefox") != -1) {

			window.open('foodwebFF.htm', 'webby','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 

// all other JavaScript browsers
	else { window.open('foodwebS.htm', 'webby','left=0,top=0,toolbar=yes,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}


// *********** Animals of A Tropical Rainforest **************
function dhtml4() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('rainforestAni.htm', 'rfAni','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { window.open('rainforestAniF.htm', 'rfAni','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}


// *********** Create A TROPICAL RAINFOREST Food Web **************
function dhtml2A() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
	window.open('rainwebCre8.htm', 'webbyRF','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no'); 
}
// all other JavaScript browsers
	else { alert("Sorry! Yet to figure out how to make it work for your browser.");}
}


// *********** Create An OCEAN Food Web **************
function dhtml3() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('oceanweb2.htm', 'webbyO','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { alert("Sorry! Yet to figure out how to make it work for your browser.");}
}

function pH() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('acids.htm', 'new','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { alert("Sorry! Yet to figure out how to make it work for your browser.");}
}


// *********** Times Table **************
function timesTable() {
	window.open('twinfacts.htm', 'xtable','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no'); }



// *********** Structure of Matter + Life Cycles **************
<!-- hide script from old browsers


function dhtml() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('mMove.htm', 'z','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { alert("Sorry! This page works only with Internet Explorer 4.0 ... yet to figure out how to make it work with Netscape.");}
}


function levers() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('levers.htm', 'lvr','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { window.open('leversF.htm', 'lvr','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}



function dhtmlBF() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('butterfly2.htm', 'bfly','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { window.open('butterfly2F.htm', 'bfly','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}



function dhtmlHF() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('housefly2.htm', 'hfly','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { window.open('housefly2F.htm', 'hfly','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}



function dhtmlFG() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('frog2.htm', 'froggie','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { window.open('frog2F.htm', 'froggie','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}



function dhtmlMQT2() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('mosquito2.htm', 'mossie2','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { window.open('mosquito2F.htm', 'mossie2','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}



function dhtmlMQT() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('mosquito-label.htm', 'mossie','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { window.open('mosquito-label2F.htm', 'mossie','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}



function dhtmlMLarva() {
	if (browser_type=="Microsoft Internet Explorer"&&browser_version>=4) {
			window.open('moslarva-label.htm', 'moslar','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');	
} 
// all other JavaScript browsers
	else { window.open('moslarva-label2F.htm', 'moslar','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no');}
}

// end hiding -->



// *********** Digestive **************
<!-- 
function digest() {
	if (browser_type=="Microsoft Internet Explorer") {
		if (window.screen.width>=800)
window.open('digest-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,width=790,height=570,left=0,top=0,statusbar=no');
		else if (window.screen.width<800)
window.open('digest-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,width=630,height=435,left=0,top=0,statusbar=no');
		}
	else { window.open('digest-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,status=no');
        	}
}



// *********** Respiratory **************
function respire() {
	if (browser_type=="Microsoft Internet Explorer") {
		if (window.screen.width>=800)	
window.open('respire-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,width=790,height=570,left=0,top=0,statusbar=no');
		else if (window.screen.width<800)
window.open('respire-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,width=630,height=435,left=0,top=0,statusbar=no');
		}
	else { window.open('respire-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,status=no');
        	}
}



// *********** Ear **************
function ear() {
	if (browser_type=="Microsoft Internet Explorer") {
		if (window.screen.width>=800)	
	window.open('ear-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,width=790,height=570,left=0,top=0,statusbar=no');
		else if (window.screen.width<800)	
	window.open('ear-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,width=630,height=435,left=0,top=0,statusbar=no');
		}
	else { window.open('ear-pic2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,status=no');
        	}
}


// *********** Skeleton **************
<!-- 
function skeleton() {
	if (browser_type=="Microsoft Internet Explorer") {
		if (window.screen.width>=800)
window.open('skeleton2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,width=790,height=570,left=0,top=0,statusbar=no');
		else if (window.screen.width<800)
window.open('skeleton2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,width=630,height=435,left=0,top=0,statusbar=no');
		}
	else { window.open('skeleton2.htm','main','toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,status=no');
        	}
}

// *********** LESOL **************
function vocab() {
window.open('lesol/vocab/vocab-png.html', 'mew','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no'); }

function sahh() {
window.open('lesol/sahh/sahh-png.html', 'mewmew','left=0,top=0,toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,resizable=yes,statusbar=no'); }

// -->
