function toggleTbody(id)
    {
        if (document.getElementById) {
            var tbod = document.getElementById(id);
            if (tbod && typeof tbod.className == 'string') {
                if (tbod.className == 'off') {
                    tbod.className = 'on';
                } else {
                    tbod.className = 'off';
                }
            }
        }
        return false;
    }


function FilterNumeric()
{
    var re;
    //alert (event.keyCode) ;
    if (event.keyCode<48)
    {
        event.returnValue=false;
    }
    if (event.keyCode>57)
    {	
        if (event.keyCode!=190)
        {
            event.returnValue=false;
        }
    }
}



var imageclock=new Object()
	//Enter path to clock digit images here, in order of 0-9, then "am/pm", then colon image:
	imageclock.digits=["c0.png", "c1.png", "c2.png", "c3.png", "c4.png", "c5.png", "c6.png", "c7.png", "c8.png", "c9.png", "cam.png", "cpm.png", "colon.png"]
	imageclock.instances=0
	var preloadimages=[]
	for (var i=0; i<imageclock.digits.length; i++){ //preload images
	    imageclock.digits[i]="images/clock/" + imageclock.digits[i]
		preloadimages[i]=new Image()
		preloadimages[i].src=imageclock.digits[i]
	}

	imageclock.imageHTML=function(timestring){ //return timestring (ie: 1:56:38) into string of images instead
		var sections=timestring.split(":")
		if (sections[0]=="0") //If hour field is 0 (aka 12 AM)
			sections[0]="12"
		else if (sections[0]>=13)
			sections[0]=sections[0]-12+""
		for (var i=0; i<sections.length; i++){
			if (sections[i].length==1)
				sections[i]='<img src="'+imageclock.digits[0]+'" />'+'<img src="'+imageclock.digits[parseInt(sections[i])]+'" />'
			else
				sections[i]='<img src="'+imageclock.digits[parseInt(sections[i].charAt(0))]+'" />'+'<img src="'+imageclock.digits[parseInt(sections[i].charAt(1))]+'" />'
		}
		return sections[0]+'<img src="'+imageclock.digits[12]+'" />'+sections[1]+'<img src="'+imageclock.digits[12]+'" />'+sections[2]
	}

	imageclock.display=function(){
		var clockinstance=this
		this.spanid="clockspan"+(imageclock.instances++)
		document.write('<span id="'+this.spanid+'"></span>')
		this.update()
		setInterval(function(){clockinstance.update()}, 1000)
	}

	imageclock.display.prototype.update=function(){
		var dateobj=new Date()
		var currenttime=dateobj.getHours()+":"+dateobj.getMinutes()+":"+dateobj.getSeconds() //create time string
		var currenttimeHTML=imageclock.imageHTML(currenttime)+'<img src="'+((dateobj.getHours()>=12)? imageclock.digits[11] : imageclock.digits[10])+'" />'
		document.getElementById(this.spanid).innerHTML=currenttimeHTML

	}





function firdom(){
	if(document.getElementsByTagName && document.createElement){
		for (l=1;l<=6;l++){
			h1s=document.getElementsByTagName('h'+l);
			scanandreplace(h1s,'h'+l);
		}
	}
}
function scanandreplace(h1s,tag){
	for(i=0;i<h1s.length;i++){
		for(f=0;f<replaceImages.length;f++){
			chunks=replaceImages[f].split('|');
			thish1=document.getElementsByTagName(tag)[i];
			if(thish1.firstChild.nodeValue==chunks[0]){
				newImg=document.createElement('img');			
				newImg.setAttribute('alt',chunks[0])
				newImg.setAttribute('src',chunks[1])
				// or newImg.src=chunks[1];
				thish1.replaceChild(newImg,thish1.firstChild)
			}
		}
	}
}
window.onload=firdom;