topPicOpacity = 100;
topPicOpacityDir = 0;
picToSwitch = 3;
picIndex = 1;

picSwapStep = 2;
picSwapTime = 50;
picSwapWait = 2000;

swapPageWait = 25000;


bn = navigator.appName;
bv = navigator.appVersion;
var match = /([0-9]+\.[0-9])(.*)/i.exec(bv)
try {
	bv = parseFloat(match[1]);
} catch (exreg) {
	bv = null;
}



function startSwapImage() {

	picIndex ++;
	if (picIndex == (picToSwitch + 1)) { picIndex = 1; }
	if(document.getElementById){ 
		if (topPicOpacityDir == 1) {
			try {
				fi = document.getElementById('intro_image');
				fi.src = "images/intro/intro_"+(picIndex)+".jpg";
			} catch (exf) {	}
		} else {
			try {
				bi = document.getElementById('maincontainer_img_div');
				bi.style.backgroundImage = "url('images/intro/intro_"+(picIndex)+".jpg')";
				bi.style.backgroundRepeat = "no-repeat";
			} catch (exb) {	}
		}

	}
	setTimeout("startSwapping()", picSwapWait);
}

function startSwapping() {
	
	if(document.getElementById('intro_image')){
        
        mp = document.getElementById('intro_image');

    	if ((topPicOpacityDir == 0)) {
    		topPicOpacity = topPicOpacity - picSwapStep;
    		if (topPicOpacity <= 0) {
    			topPicOpacity = 0;
    			topPicOpacityDir = 1;
    			setTimeout("startSwapImage()", picSwapWait);
    		} else {
    			setTimeout("startSwapping()", picSwapTime);
    		}
    	} else {
    		topPicOpacity = topPicOpacity + picSwapStep;
    		if (topPicOpacity >= 100) {
    			topPicOpacity = 100;
    			topPicOpacityDir = 0;
    			setTimeout("startSwapImage()", picSwapWait);
    		} else {
    			setTimeout("startSwapping()", picSwapTime);
    		}
    	}
	

		switch (bn) {
			case "Microsoft Internet Explorer":
	        	mp.style.filter="alpha(opacity="+topPicOpacity+")";
				break;
			case "Netscape":
				mp.style.MozOpacity = topPicOpacity/100;
				mp.style.opacity = topPicOpacity/100;
				break;
			case "Opera":
				if (bv >= 9) { 
					mp.style.opacity = topPicOpacity/100; 
					break; 
				}
			default:
				if (topPicOpacity > 50) {
					mp.style.visibility = 'visible';
				} else {
					mp.style.visibility = 'hidden';
				}
				break;
		}
	} 
}






function startSwapPage() {
	setTimeout("swapPage()", swapPageWait);
}
function swapPage() {
	location.href='0100.shtm';
}