function esti_f () {
	/*
   if(!signform.company.value ) {
        alert('ȸ»ç¸íÀ» ÀÔ·ÂÇØÁÖ¼¼¿ä.');
        signform.company.focus();
        return false;
     }
    */
  if(!signform.from_name.value ) {
        alert('´ã´çÀÚ¼º¸íÀ» ÀÔ·ÂÇØÁÖ¼¼¿ä.');
        signform.from_name.focus();
        return false;
     }
	 if(signform.Hphone1.value) {
         if(!IsNumber(signform.Hphone1.name)) {
            alert("ÀüÈ­¹øÈ£´Â ¼ýÀÚ¿©¾ß ÇÕ´Ï´Ù!");
            signform.Hphone1.focus();
            return false; 
         }
      }
      if(signform.Hphone2.value) {
         if(!IsNumber(signform.Hphone2.name)) {
            alert("ÀüÈ­¹øÈ£´Â ¼ýÀÚ¿©¾ß ÇÕ´Ï´Ù!");
            signform.Hphone2.focus();
            return false; 
         }
      }
      if(signform.Hphone3.value) {
         if(!IsNumber(signform.Hphone3.name)) {
            alert("ÀüÈ­¹øÈ£´Â ¼ýÀÚ¿©¾ß ÇÕ´Ï´Ù!");
            signform.Hphone3.focus();
            return false; 
         }
      }
	/*
	   if (!sign.Hphone1.value) {
         alert("ÀüÈ­¹øÈ£¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä!");
         sign.Hphone1.focus();
         return false;
      }

 if (!sign.Hphone2.value) {
         alert("ÀüÈ­¹øÈ£¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä!");
         sign.Hphone2.focus();
         return false;
      }

 if (!sign.Hphone3.value) {
         alert("ÀüÈ­¹øÈ£¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä!");
         sign.Hphone3.focus();
         return false;
      } 
    */
	   if(signform.cp1.value) {
         if(!IsNumber(signform.cp1.name)) {
            alert("ÇÚµåÆù ÀüÈ­¹øÈ£´Â ¼ýÀÚ¿©¾ß ÇÕ´Ï´Ù!");
            signform.cp1.focus();
            return false;         
         }
      }   
	
	   
      if(signform.cp2.value) {
         if(!IsNumber(signform.cp2.name)) {
            alert("ÇÚµåÆù¹øÈ£´Â ¼ýÀÚ¿©¾ß ÇÕ´Ï´Ù!");
            signform.cp2.focus();
            return false; 
         }
      }
      if(signform.cp3.value) {
         if(!IsNumber(signform.cp3.name)) {
            alert("ÇÚµåÆù¹øÈ£´Â ¼ýÀÚ¿©¾ß ÇÕ´Ï´Ù!");
            signform.cp3.focus();
            return false; 
         }
      }

	  if((!signform.Hphone1.value && !signform.Hphone2.value && !signform.Hphone3.value && !signform.cp1.value && !signform.cp2.value && !signform.cp3.value)){
	  alert('ÀϹÝÀüÈ­ ¶Ç´Â ÇÚµåÆù µÑÁß Çϳª´Â ÀÔ·ÂÇØÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù!');
	  return false;
	  }

	  /*
      if (!sign.cp1.value) {
         alert("ÇÚµåÆù¹øÈ£¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä!");
         sign.cp1.focus();
         return false;
      }

   if (!sign.cp2.value) {
         alert("ÇÚµåÆù¹øÈ£¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä!");
         sign.cp2.focus();
         return false;
      }

   if (!sign.cp3.value) {
         alert("ÇÚµåÆù¹øÈ£¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä!");
         sign.cp3.focus();
         return false;
      } 
    */
	 if(signform.email_1.value=="" ) {
        alert('Email¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä.');
        signform.email_1.focus();
        return false;
     }
	  if(signform.email_2.value=="" ) {
        alert('Email¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä.');
        signform.email_2.focus();
        return false;
     } 
	/*

	 if(signform.from_email.value=="" ) {
        alert('Email¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä.');
        signform.from_email.focus();
        return false;
     } 
	if(signform.from_email.value){
		if (signform.from_email.value.length <= 6 || 
		 signform.from_email.value.indexOf ('@', 0) == -1 || 
		 signform.from_email.value.indexOf ('.', 0) == -1){ 

		 alert("'' " + signform.from_email.value + " '', Àº À̸ÞÀÏÁÖ¼Ò°¡ ¾Æ´Õ´Ï´Ù"); 
		 return false; 
		} 
	}
  */
	if(!signform.purpose.value ) {
        alert('»çÀÌÆ®À¯ÇüÀ» ¼±ÅÃÇØÁÖ¼¼¿ä.');
        signform.purpose.focus();
        return false;
     }
	/* 
	 if(!signform.within.value ) {
        alert('Á¦À۽ñ⸦ ¼±ÅÃÇØÁÖ¼¼¿ä.');
        signform.within.focus();
        return false;
     }
	 if(!signform.expectpage.value ) {
        alert('¿¹»óÆäÀÌÁö¸¦ ¼±ÅÃÇØÁÖ¼¼¿ä.');
        signform.expectpage.focus();
        return false;
     }
	 if(!signform.expectprice.value ) {
        alert('¿¹»ó±Ý¾×À» ¼±ÅÃÇØÁÖ¼¼¿ä.');
        signform.expectprice.focus();
        return false;
     }	

	if(!signform.etc.value ) {
        alert('³»¿ëÀ» ÀÔ·ÂÇØÁÖ¼¼¿ä.');
        signform.etc.focus();
        return false;
     } 
	 */

   }//function   


   function IsNumber(formname) {
      var form = eval("document.signform." + formname);

      for(var i = 0; i < form.value.length; i++) {
         var chr = form.value.substr(i,1);
         if(chr < '0' || chr > '9') {            
            return false;
         }
      }
      return true;   
   }
   

 function check_num_tel(ele) {
	str = ele.value;
	if(str == "") {
		alert("ÀüÈ­¹øÈ£¸¦ ÀÔ·ÂÇÏ¿© ÁÖ¼¼¿ä");
		return false;
	}
	
	if(str < "0" || str > "9999") {	
		if(str != "/" && str !="*" && str !="+" && str != "-" && str != "(" && str !=")" && str != ".") {
		alert("¼ýÀÚ¸¦ ÀÔ·ÂÇØ ÁÖ¼¼¿ä !!!");
		
		ele.value="";
		return false;
		}
	}	
	return true;	
}



function esti_state(form) {
		if(form.keyfield.value=="" ) {
			alert("°Ë»öÁ¶°ÇÀ» ¼±ÅÃÇϼ¼¿ä");
			}
		else if(form.key.value=="") 
			{		alert("°Ë»öÅ°¿öµå¸¦ ÀÔ·ÂÇϼ¼¿ä");
					form.key.focus();
		}	
		
	}