function Campo(Nom, Ancho, Maximo,Pass, clas){
		isMac = navigator.platform;
		isMac = isMac.toUpperCase()
		isMac = isMac.indexOf("MAC")
		Pass!=true ? Tipo="text": Tipo="password"
		if(document.layers){
			document.write("<input type="+ Tipo+" size="+Ancho + " name="+Nom+" maxlength="+ Maximo+">" )
						   }
		else if (isMac==0){
			Ancho *= 1.45
			document.write("<input type="+ Tipo+" size="+Ancho + " name="+Nom+" maxlength="+ Maximo+">" )
		}
		
		
		else if (document.all){
			Ancho=Ancho*1.45;
			document.write("<input type="+ Tipo+" size="+Ancho + " name="+Nom+" maxlength="+ Maximo+" class="+ clas +">" )
			}
		else{
		Ancho = Ancho / 1.10
		document.write("<input type="+ Tipo+" size="+Ancho + " name="+Nom+" maxlength="+ Maximo+" class=" + clas + ">" )
		}		
	}