function mascara(o,f){
				v_obj=o
				v_fun=f
				setTimeout("execmascara()",1)
			}
		
			function execmascara(){
				v_obj.value=v_fun(v_obj.value)
			}
			function leech(v){
				v=v.replace(/o/gi,"0")
				v=v.replace(/i/gi,"1")
				v=v.replace(/z/gi,"2")
				v=v.replace(/e/gi,"3")
				v=v.replace(/a/gi,"4")
				v=v.replace(/s/gi,"5")
				v=v.replace(/t/gi,"7")
				return v
			}
			function telefone(v){
				v=v.replace(/\D/g,"")                 
				v=v.replace(/^(\d\d)(\d)/g,"($1) $2") 
				v=v.replace(/(\d{4})(\d)/,"$1-$2")    
				return v
			}// JavaScript Document