// JavaScript Document

// ***************************************************************************
// ***************************************************************************
// 				NOTES:
//				In the HTML page make sure that the image name attribute is defined
//				In the <a> tag use the: onMouseOver="imgOn('img2');" onMouseOut="imgOff('img2');"
//				Last Modified: Sam Blakeley - March 28th 2005
// ***************************************************************************
// ***************************************************************************


<!--
//check browser to see what version it is. If what is return is true, then the browser can 
//execute the image rollover feature.
function testNav3() {
        if (navigator.appVersion.substring(0, 2) == 2.0){
                return false
        }
        else {
                
                appVerionNum = navigator.appVersion.substring(0, 3)
                if(appVerionNum >= 4.0) {
                        return true ;
                } else {
                        return false ;
                }
        }
}

//Use the result from the testNav3 and feed into canRollover to preload the images

//
canRollover = testNav3() ;
if (canRollover) {
        img1On = new Image();
        img1On.src = "/images/btnHome_on.gif";
		img1Off = new Image();
        img1Off.src = "/images/btnHome.gif";
		
        img2On = new Image();
        img2On.src = "/images/btnPartners_on.gif";
		img2Off = new Image();
        img2Off.src = "/images/btnPartners.gif";
		
        img3On = new Image();
        img3On.src = "/images/btnHealthProfiles_on.gif";
		img3Off = new Image();
        img3Off.src = "/images/btnHealthProfiles.gif";
		
        img4On = new Image();
        img4On.src = "/images/btnThematicMaps_on.gif";
		img4Off = new Image();
        img4Off.src = "/images/btnThematicMaps.gif";
		
        img5On = new Image();
        img5On.src = "/images/btnDataHoldings_on.gif";
		img5Off = new Image();
        img5Off.src = "/images/btnDataHoldings.gif";
		
        img6On = new Image();
        img6On.src = "/images/btnAboutTheData_on.gif";
		img6Off = new Image();
        img6Off.src = "/images/btnAboutTheData.gif";
		
		img7On = new Image();
        img7On.src = "/images/btnContacts_on.gif";
		img7Off = new Image();
        img7Off.src = "/images/btnContacts.gif";
		
		img8On = new Image();
        img8On.src = "/images/btnFeedback_on.gif";
		img8Off = new Image();
        img8Off.src = "/images/btnFeedback.gif";
		
		img9On = new Image();
        img9On.src = "/images/btnHealthCharLevel1_on.gif";
		img9Off = new Image();
        img9Off.src = "/images/btnHealthCharLevel1.gif";
		
		img10On = new Image();
        img10On.src = "/images/btnHealthCharLevel2_on.gif";
		img10Off = new Image();
        img10Off.src = "/images/btnHealthCharLevel2.gif";
		
		img11On = new Image();
        img11On.src = "/images/btnHealthCharLevel3_on.gif";
		img11Off = new Image();
        img11Off.src = "/images/btnHealthCharLevel3.gif";
		
		img12On = new Image();
        img12On.src = "/images/btnHealthCharLevel4_on.gif";
		img12Off = new Image();
        img12Off.src = "/images/btnHealthCharLevel4.gif";
		
		img13On = new Image();
        img13On.src = "/images/btnHelp_on.gif";
		img13Off = new Image();
        img13Off.src = "/images/btnHelp.gif";
		
		img14On = new Image();
        img14On.src = "/images/btnResources_on.gif";
		img14Off = new Image();
        img14Off.src = "/images/btnResources.gif";
		
		img15On = new Image();
        img15On.src = "/images/btnHealthCharLevel5_on.gif";
		img15Off = new Image();
        img15Off.src = "/images/btnHealthCharLevel5.gif";
}


function imgOn(imgName) {
        if (canRollover) {                
                document.images[imgName].src = eval(imgName + "On.src");
                }
}

function imgOff(imgName) {
        if (canRollover) {
                document.images[imgName].src = eval(imgName + "Off.src");
                }
}


// -->