// JavaScript Document
image1 		= new Image();
image1.src 	= "images/spacer.gif";

image2 		= new Image();
image2.src 	= "images/center_left_top.gif";

image3 		= new Image();
image3.src 	= "images/center_hor_top.gif";

image4 		= new Image();
image4.src 	= "images/center_right_top.gif";

image5 		= new Image();
image5.src 	= "images/center_ver_left.gif";

image6 		= new Image();
image6.src 	= "images/center_ver_right.gif";

image7 		= new Image();
image7.src 	= "images/center_left_bottom.gif";

image8 		= new Image();
image8.src 	= "images/center_hor_bottom.gif";

image9 		= new Image();
image9.src 	= "images/center_right_bottom.gif";


// JavaScript Document
function expand(name) {
	document.getElementById( name ).style.display = "block";
}

function collapse(name) {
	document.getElementById( name ).style.display = "none";
}

function change_color(el, bg1, bg2){
	for (i = 0; i < el.parentNode.childNodes.length; i++)
		if (el.parentNode.childNodes[i].tagName)
		el.parentNode.childNodes[i].style.backgroundImage=bg2
		el.style.backgroundImage=bg1
}

function preview_image(url, text){
	document.photo_img.src 								= url;
	document.getElementById("photo_text").innerHTML 	= text;
}

function print_page(listing) {
	var leftPos = (screen.availWidth-700) / 2;
	var topPos = (screen.availHeight-500) / 2;
	Press1Win = window.open('site_detail_print.php?listing=' + listing,'','width=700,height=500,scrollbars=yes,resizable=no,titlebar=0,top=' + topPos + ',left=' + leftPos);
}

function evaluar_letra(){
var a=0;
	input_nombre = document.getElementById('search_cad').value;		
	if (vacio(input_nombre) == false){ 
	}else{
 		if(validarCaracter(input_nombre)==false){
		alert("invalid characters in field keyphrase");	
    	a=1; 
		}
 	}
///////////////////////////////
if(a==1){return;}
formulario1.submit();
}

	
//busca caracteres que no sean espacio en blanco en una cadena  
function vacio(q) {  
         for ( i = 0; i < q.length; i++ ) {  
                 if ( q.charAt(i) != " " ) {  
                         return true  
                 }  
         }  
         return false  
} 
/////////////////////
function validarCaracter(campo){
 var ubicacion  
 var enter = "\n"  
 var caracteres = "abcdefghijklmnopqrstuvwxyzñ1234567890 ABCDEFGHIJKLMNOPQRSTUVWXYZÑáéíóúÁÉÍÓÚ-_." + String.fromCharCode(13) + enter	
 var contador = 0  
  for (var i=0; i < campo.length; i++) {  
    ubicacion = campo.substring(i, i + 1)  
    if (caracteres.indexOf(ubicacion) != -1) {  
      contador++  
    } else {  
      return false  
    }  
  }  
}