function extraiScript(texto){  
     var ini, pos_src, fim, codigo, texto_pesquisa;  
     var objScript = null;    
     texto_pesquisa = texto.toLowerCase()    
     ini = texto_pesquisa.indexOf('<script', 0)   
     while (ini!=-1){   
         var objScript = document.createElement("script");    
         pos_src = texto_pesquisa.indexOf(' src', ini)    
         ini = texto_pesquisa.indexOf('>', ini) + 1;    
         if (pos_src < ini && pos_src >=0){
             ini = pos_src + 4;  
             fim = texto_pesquisa.indexOf('.', ini)+4;  
             codigo = texto.substring(ini,fim);  
             codigo = codigo.replace("=","").replace(" ","").replace("\"","").replace("\"","").replace("\'","").replace("\'","").replace(">","");    
             objScript.src = codigo;  
         }else{
             fim = texto_pesquisa.indexOf('</script>', ini);    
             codigo = texto.substring(ini,fim);    
             objScript.text = codigo;  
         }    
         document.body.appendChild(objScript);   
         ini = texto.indexOf('<script', fim);    
         objScript = null;  
     }  
 } 

function returnQuery(form){
    var elements = form.elements;
	var fields = null;
    for (var i = 0; i < elements.length; i++) {
        if ((name = elements[i].name) && (value = elements[i].value)){
					if(i == 0){
						fields = name + "=" + encodeURIComponent(value);
					} else {
									fields += "&"+(name + "=" + encodeURIComponent(value));
					}
				}
    }
    //alert (fields);
	return fields;
}

function BuscaElementosForm(idForm) {  
    var elementosFormulario = document.getElementById(idForm).elements;  
    var qtdElementos = elementosFormulario.length;  
     var queryString = "";  
     var elemento;  
    this.ConcatenaElemento = function(nome,valor) {   
                                 if (queryString.length>0) {   
                                     queryString += "&";  
                                 }  
                                 queryString += encodeURIComponent(nome) + "=" + encodeURIComponent(valor);  
                              };  
     for (var i=0; i<qtdElementos; i++) {   
         elemento = elementosFormulario[i];  
         if (!elemento.disabled) {   
             switch(elemento.type) {   
                 case 'text': case 'password': case 'hidden': case 'textarea':   
                     this.ConcatenaElemento(elemento.name,elemento.value);  
                     break;  
                 case 'select-one':  
                     if (elemento.selectedIndex>=0) {  
                         this.ConcatenaElemento(elemento.name,elemento.options[elemento.selectedIndex].value);  
                     }  
                     break;  
                 case 'select-multiple':  
                     for (var j=0; j<elemento.options.length; j++) {  
                         if (elemento.options[j].selected) {  
                             this.ConcatenaElemento(elemento.name,elemento.options[j].value);  
                         }  
                     }  
                     break;  
                 case 'checkbox': case 'radio':  
                     if (elemento.checked) {  
                         this.ConcatenaElemento(elemento.name,elemento.value);  
                     }  
                     break;  
             }  
         }  
     }
     return queryString;  
 }

function Verify(url, div, tipo, campos)
{
    var ajax = null;
	if(window.ActiveXObject)
		ajax = new ActiveXObject('Microsoft.XMLHTTP');
	else if(window.XMLHttpRequest)
		ajax = new XMLHttpRequest();


	if(ajax != null)
	{
		var cache = new Date().getTime();
		ajax.open(tipo, url + "&cache=" + cache , true);
		ajax.onreadystatechange = function status()
		{
				if(ajax.readyState == 4)
				{
					if(ajax.status == 200)
					{
						document.getElementById(div).innerHTML = ajax.responseText;
						var texto=unescape(ajax.responseText);
						extraiScript(texto);
					}
     		  	}
				else if(ajax.readyState == 0)
					document.getElementById(div).innerHTML = '<div style="text-align: center;"><img src="templates/default/images/loader.gif" /></div>';
                else if(ajax.readyState == 3)
                    document.getElementById(div).innerHTML = '<div style="text-align: center;"><img src="templates/default/images/loader.gif" /></div>';
				else
					document.getElementById(div).innerHTML = '<div style="text-align: center;"><img src="templates/default/images/loader.gif" /></div>';
		}
		
		if(tipo == "POST"){
			ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
			ajax.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
			ajax.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
			ajax.setRequestHeader("Pragma", "no-cache");
			ajax.send(campos); 
		}
    	else {
   		ajax.send(null);
    	}
	}

}