function doSwap(box_no, idx) {
	if (box_no==1) {
		if (idx==0) MM_swapImage('Image1','','images/tabs1.gif',1);
		if (idx==1) MM_swapImage('Image1','','images/tabs1_o.gif',1);
	}
	if (box_no==2) {	
		if (idx==2) MM_swapImage('Image2','','images/tabs2.gif',1);
		if (idx==3) MM_swapImage('Image2','','images/tabs2_o.gif',1);
	}	
	changecontent(box_no, idx);
}

function onPageOpen() {
	MM_preloadImages('images/tabs1_o.gif', 'images/tabs2_o.gif');
	changecontent(1,0);
	changecontent(2,2);
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.0
	var p,i,x;  
  	if(!d) d=document; 
  	if((p=n.indexOf("?"))>0&&parent.frames.length) {
  		d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
	}
  	if(!(x=d[n])&&d.all) x=d.all[n]; 
	for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  	if(!x && document.getElementById) x=document.getElementById(n); 
	return x;
}

function MM_swapImage() { //v3.0
	var i,j=0,x,a=MM_swapImage.arguments; 
	document.MM_sr=new Array; 
	for(i=0;i<(a.length-2);i+=3)
   		if ((x=MM_findObj(a[i]))!=null){
			document.MM_sr[j++]=x; 
			if(!x.oSrc) x.oSrc=x.src; 
			x.src=a[i+2];
		}
}

function changecontent(box_no, idx){

	if (box_no==1) {
		if (DOM2){
			document.getElementById("tbox1").innerHTML=begintag[box_no]+fcontent[idx]+closetag[box_no];
		}
		else if (ie4)
			document.all.tbox1.innerHTML=begintag[box_no]+fcontent[idx]+closetag[box_no];
		else if (ns4){
			document.tbox1_ns.document.tbox1_ns_sub.document.write(begintag[box_no]+fcontent[idx]+closetag[box_no]);
			document.tbox1_ns.document.tbox1_ns_sub.document.close();
		}
	} 
	if (box_no==2) {
		if (DOM2){
			document.getElementById("tbox2").innerHTML=begintag[box_no]+fcontent[idx]+closetag[box_no];
		}
		else if (ie4)
			document.all.tbox2.innerHTML=begintag[box_no]+fcontent[idx]+closetag[box_no];
		else if (ns4){
			document.tbox2_ns.document.tbox2_ns_sub.document.write(begintag[box_no]+fcontent[idx]+closetag[box_no]);
			document.tbox2_ns.document.tbox2_ns_sub.document.close();
		}
	}		
}