<!--

//공백검사
function chk(obname,tx){
	if(trim(obname.value)==""){
		alert(tx);
		obname.value='';
		obname.focus();
		return false;
	}else{
		return true;
	}
}

function trim (strSource) 
{ re = /^\s+|\s+$/g; return strSource.replace(re, ''); } 
function ltrim (strSource) 
{ re = /^\s+/g; return strSource.replace(re, ''); } 
function rtrim (strSource) 
{ re = /\s+$/g; return strSource.replace(re, ''); } 

//숫자만 입력
function num_chk(val,form){
	if (isNaN(val)){
		alert("숫자로만 입력하셔요");
		form.value='';
		form.focus();
	}
}

/*
var clickmessage="무단 이미지사용을 금지합니다."

function disableclick(e) {
if (document.all) {
if (event.button==2||event.button==3) {
if (event.srcElement.tagName=="IMG"){
alert(clickmessage);
return false;
}
}
}
else if (document.layers) {
if (e.which == 3) {
alert(clickmessage);
return false;
}
}
else if (document.getElementById){
if (e.which==3&&e.target.tagName=="IMG"){
alert(clickmessage)
return false
}
}
}

function associateimages(){
for(i=0;i<document.images.length;i++)
document.images[i].onmousedown=disableclick;
}

if (document.all)
document.onmousedown=disableclick
else if (document.getElementById)
document.onmouseup=disableclick
else if (document.layers)
associateimages()
*/

-->