function mostrar_capas(numero,altura,creadas)
{
	if (creadas){
	//mylayer1a.hide(); mylayer1b.hide(); document.img1.src=image1a.src;
	//mylayer2a.hide(); mylayer2b.hide(); document.img2.src=image1a.src;	
	mylayer3a.hide(); mylayer3b.hide();	
	clientelayera.hide(); clientelayerb.hide(); //document.img4.src=image1a.src;
		
	switch(numero){
		case 0: { break;}
		case 1: { mylayer1a.show();mylayer1b.show();document.img1.src=image1b.src;break;}
		case 2: { mylayer2a.show();mylayer2b.show();redimensionar(mylayer2a,altura*20);redimensionar(mylayer2b,altura*20);document.img2.src=image1b.src;break;}
		case 3: { mylayer3a.show();mylayer3b.show();redimensionar(mylayer3a,altura*20);redimensionar(mylayer3b,altura*20);break;}
		case 4: { clientelayera.show();clientelayerb.show();//document.img4.src=image1b.src;
		break;}
	}}
}

function mostrar_capa(numero,altura,creadas)
{
	if (creadas){
	mylayer1a.hide(); mylayer1b.hide(); //document.img1.src=image1a.src;
	mylayer2a.hide(); mylayer2b.hide(); //document.img2.src=image1a.src;
	
	clientelayera.hide(); clientelayerb.hide(); //document.img4.src=image1a.src;
	
	switch(numero){
		case 0: { break;}
		case 1: { mylayer1a.show();mylayer1b.show();//document.img1.src=image1b.src;
				break;}
		case 2: { mylayer2a.show();mylayer2b.show();redimensionar(mylayer2a,altura*20);redimensionar(mylayer2b,altura*20);//document.img2.src=image1b.src;
				  break;}
		case 4: { clientelayera.show();clientelayerb.show();//document.img4.src=image1b.src;
		break;}
	}}
}

function redimensionar(capa,altura)

{
if (is.ns) {
	capa.css.clip.top = 0
	capa.css.clip.right = 200
	capa.css.clip.bottom = altura
	capa.css.clip.left = 0
}
else if (is.ie)
	capa.css.clip = "rect(0px,200px," + altura + "px,0px)";

//capa.style.clip= "rect(0px,200px," + altura + "px,0px)";

}

// BrowserCheck Object
function BrowserCheck() {
	var b = navigator.appName
	if (b=="Netscape") this.b = "ns"
	else if (b=="Microsoft Internet Explorer") this.b = "ie"
	else this.b = b
	this.version = navigator.appVersion
	this.v = parseInt(this.version)
	this.ns = (this.b=="ns" && this.v>=4)
	this.ns4 = (this.b=="ns" && this.v==4)
	this.ns5 = (this.b=="ns" && this.v==5)
	this.ie = (this.b=="ie" && this.v>=4)
	this.ie4 = (this.version.indexOf('MSIE 4')>0)
	this.ie5 = (this.version.indexOf('MSIE 5')>0)
	this.min = (this.ns||this.ie)
}
is = new BrowserCheck()