/***************************************************************************/
//no evento OnKeyUp="mascara_data(this.value)"
//formata a data 
function mascara(data,form){ 
			var mydata = ''; 
			mydata = mydata + data; 
			if (mydata.length == 2){ 
					mydata = mydata + '.'; 
					form.insc.value = mydata; 
			} 
			if (mydata.length == 5){ 
					mydata = mydata + '.'; 
					form.insc.value = mydata; 
			}
			if (mydata.length == 9){ 
					mydata = mydata + '.'; 
					form.insc.value = mydata; 
			} 
			if (mydata.length == 14){ 
					mydata = mydata + '.'; 
					form.insc.value = mydata; 
			} 
}
function valida_busca(form){
a = form.insc.value;
	if(a.length < 18){
		alert("A inscriçaõ imobiliária deve conter 18 dígitos\nFormato NN.NN.NNN.NNNN.NNN");
		return false;
	}
	if(a <= 0 ){
		alert("Numero inválido!");
		return false;
	}
return true;
}