function chkForm(f)
{	
	for(i = 0; i < f.elements.length; i++){ 
		currEl = f.elements[i]; 
		//Çʼö Ç׸ñÀ» üũÇÑ´Ù.  
		if (currEl.getAttribute("required") != null) { 
			if(currEl.type == "TEXT" || currEl.type == "text" || 
			   currEl.tagName == "SELECT" || currEl.tagName == "select" || 
			   currEl.tagName == "TEXTAREA" || currEl.tagName == "textarea"){ 
				if(!chkText(currEl,currEl.hname)) return false; 

			} else if(currEl.type == "PASSWORD" || currEl.type == "password"){ 
				if(!chkText(currEl,currEl.hname)) return false; 

			} else if(currEl.type == "CHECKBOX" || currEl.type == "checkbox"){ 
				if(!chkCheckbox(f, currEl,currEl.hname)) return false; 

			} else if(currEl.type == "RADIO" || currEl.type == "radio"){ 
				if(!chkRadio(f, currEl,currEl.hname)) return false; 

			}
		}
		// ÀÔ·Â ÆäÅÏÀ» üũÇÑ´Ù.
		if(currEl.getAttribute("option") != null && currEl.value.length > 0){ 
			if(!chkPatten(currEl,currEl.option,currEl.hname)) return false; 
		} 
	}
} 

function chkPatten(field,patten,name)
{ 
	var regWidth =/^[0-9-%]+$/; 
	var regNum =/^[0-9]+$/; 
	var regTid = /^[a-zA-Z]{1}[a-zA-Z0-9_-]{3,15}$/; 
	var regPhone =/^[0-9]{2,3}-[0-9]{3,4}-[0-9]{4}$/; 
	var regMail =/^[_a-zA-Z0-9-]+@[._a-zA-Z0-9-]+\.[a-zA-Z]+$/; 

	patten = eval(patten); 
	if(!patten.test(field.value)){ 
		alert(name + "\n\nÇ׸ñÀÇ Çü½ÄÀÌ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù."); 
		field.focus(); 
		return false; 
	}	
	return true; 
} 

function chkText(field, name)
{ 
	if(field.value.length < 1){ 
		alert(name); 
		field.focus(); 
		return false; 
	} 
	return true; 
}

function chkCheckbox(form, field, name)
{
	fieldname = eval(form.name+'.'+field.name);
	if (!fieldname.checked){
		alert(name); 
		field.focus(); 
		return false; 
	}
	return true; 
}

function chkRadio(form, field, name)
{
	fieldname = eval(form.name+'.'+field.name);
	for (i=0;i<fieldname.length;i++) {
		if (fieldname[i].checked)
			return true; 
	}
	alert(name); 
	field.focus(); 
	return false; 
}

function moveFocus(num,fromform,toform)
{
	var str = fromform.value.length;
	if(str == num) toform.focus();
}

function NewWin(url, l, t, w, h, s, r)
{
 opt = "left=" + l + ", top=" + t + ", width=" + w + ", height=" + h;
 opt = opt + ", toolbar=no,location=no,directories=no,status=no,menubar=no";
 opt = opt + ",scrollbars=" + s;
 opt = opt + ",resizable=" + r;
 window.open(url, "_blank", opt);
}