/*------------------------------------------------------------------------
*      Rutinas para la web de Gulix 
* 	      www.gulix.cl
* efectos para el campo de búsqueda
* by lacosox.org
*-------------------------------------------------------------------------
*/


	var color = 0;	
	var suma = 10;
	
	
	function enfocar() {
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById('q').focus();
	}
	else {
		if (document.layers) { // Netscape 4
			document.q.focus();
		}
		else { // IE 4
			document.all.q.focus();
		}
	}
	}
	
	function aparecer(){
		var obj = document.getElementById('buscar');
		obj.style.display = "block";
		color += suma;
		
		if (!(color>=110)){
			obj.style.filter = 'alpha(opacity='+color+')'; //IE
			obj.style.opacity = color /100; // standart
			obj.style.MozOpacity = color /100; //firefox
			obj.style.KHTMLOpacity = color /100; //webkit
			window.setTimeout ("aparecer();", 50); //vel
		}
	}
	
	function desvanecer() {
		var obj2 = document.getElementById('buscar');
		color -= suma;
		if (!(color <=-10)){
			obj2.style.filter = 'alpha(opacity='+color+')'; //IE
			 obj2.style.opacity = color /100; //standart
			 obj2.style.MozOpacity = color /100; //firefox
			 obj2.style.KHTMLOpacity = color /100; //webkit
			window.setTimeout ("desvanecer();", 50); //vel
		}
	}
	
	function buscar_fade(){
		if (color<=0){
		  aparecer();
		  enfocar();
		}
		else {
		  desvanecer();
		}
	}
	
	
	
function buscar_aparece_brusco() {
	if (document.getElementById) { // DOM3 = IE5, NS6
		if(document.getElementById('buscar').style.visibility != 'hidden')
		{ 
			document.getElementById('buscar').style.visibility = 'hidden';
		}
		else
		{
		
			document.getElementById('buscar').style.visibility = 'visible';
			document.getElementById('q').focus();
		}
	}
	else {
		if (document.layers) { // Netscape 4
			if(document.buscar.visibility != 'hidden')
			{	
				document.buscar.visibility = 'hidden';
			}
			else
			{
				document.buscar.visibility = 'visible';
				document.q.focus();
			}
		}
		else { // IE 4
			if(document.all.buscar.style.visibility != 'hidden')
			{document.all.buscar.style.visibility = 'hidden';}
			else
			{document.all.buscar.style.visibility = 'visible';
			 document.all.q.focus();
				}
		}
	}
}