function runslide() {
		
		var inicio = parseInt(document.getElementById("cont").value)
		var totals = parseInt(document.getElementById("totals").value)
		tope = parseInt(inicio) + 5;
		if (totals <= tope ){return}
		for(i=1;i<6;i++) {
			imagen = parseInt(i) + tope;
			if (parseInt(imagen) > parseInt(totals)){
				imagen="";
				n_show_b(i-1);
				}
			var navegador = navigator.appName 
			if (navegador == "Microsoft Internet Explorer") {
				document.getElementById(i-1).style.filter="blendTrans(duration=2)";
				document.getElementById(i-1).filters.blendTrans.Apply();
				
				document.getElementById(i-1).src= "images/image-preview"+imagen+".jpg"
				
				document.getElementById(i-1).filters.blendTrans.Play();
				} else {
				document.getElementById(i-1).src= "images/image-preview"+imagen+".jpg"
				}
		document.getElementById("cont").value = tope;
		}
	}
	
	function backslide() {
		inicio = parseInt(document.getElementById("cont").value)
		//alert (inicio);
		if (inicio == 0 ){return}
		tope = parseInt(inicio) - 5;
		for(i=1;i<6;i++) {
			//alert (i);
			imagen = parseInt(i) + tope;
			show_b(i-1);
			var navegador = navigator.appName 
			if (navegador == "Microsoft Internet Explorer") {
				document.getElementById(i-1).style.filter="blendTrans(duration=1)";
				document.getElementById(i-1).filters.blendTrans.Apply();
				document.getElementById(i-1).src= "images/image-preview"+imagen+".jpg"
				document.getElementById(i-1).filters.blendTrans.Play();
			} else
			{
			document.getElementById(i-1).src= "images/image-preview"+imagen+".jpg"
			}
		}
		document.getElementById("cont").value = tope;
	}
	function preview(numero) {
		inicio = parseInt(document.getElementById("cont").value)
		num= parseInt(inicio + numero);
		var totals = parseInt(document.getElementById("totals").value);
		if (num > totals){return}
		var navegador = navigator.appName 
		if (navegador == "Microsoft Internet Explorer") {
			document.getElementById("gde").style.filter="blendTrans(duration=1.5)";
			document.getElementById("gde").filters.blendTrans.Apply();
			document.getElementById("gde").src= "images/image"+num+".jpg"
			document.getElementById("gde").filters.blendTrans.Play();			
		} else {document.getElementById("gde").src= "images/image"+num+".jpg"}
		}
	function n_show_b (elemento){
		document.getElementById(elemento).className = 'img2_sinbordes';
		}
	function show_b (elemento){
		document.getElementById(elemento).className = 'img1';
		}