//trim
String.prototype.trim=function()
{
	var str=this.replace(/(\s+$)/g,"");
	return str.replace(/(^\s*)/g,"");
}

// ¼ýÀÚ¸¸ ÀԷ¹޵µ·Ï ÇÑ´Ù.
function OnlyNumber()
{
	if( event.keyCode == 8  ||  event.keyCode == 9 || (event.keyCode > 47 && event.keyCode <58) || (event.keyCode > 95 && event.keyCode <106) || event.keyCode == 37  || event.keyCode == 39 || event.keyCode == 46)
		event.returnValue = true;
	else
		event.returnValue = false;
}


//new window
function openWindow(url,target,option) {
    var wint = (screen.height - 250) / 2;
    var winl = (screen.width - 320) / 2;
    window.open(url,target,option+',top='+wint+',left='+winl);//+", scrollbars=yes"
}

//¿µ¹®,¼ýÀÚ¸¸°¡´É
function AlperOnly() {
	var el = event.srcElement;
	var num = "01234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	event.returnValue = true;
	if (event.keyCode != 8 ) {
		for(var i=0; i<el.value.length; i++) {
			if(-1 == num.indexOf(el.value.charAt(i)))
				event.returnValue = false;
			}
			if(!event.returnValue) {
			alert('¿µ¹®°ú ¼ýÀÚ¸¸ ÀÔ·Â °¡´ÉÇÕ´Ï´Ù.');
			el.value = "";
		}
	}
}

//jump¸Þ´º
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}


//üũ¹Ú½º
function CheckAll(){
    for (var i=1;i<document.form_tag.elements.length;i++){
        var e = form_tag.elements[i];
        if(!form_tag.checkall.checked){
            e.checked=false;
        }else{
            e.checked=true;
        }
    }
}

//ț̢
var win=null; 
function NewWindow(mypage,myname,w,h,scroll,pos){ 

        if(pos=="random"){ 
                LeftPosition=(screen.width)?Math.floor(Math.random()*((screen.width-w)-75)):100; 
                TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;} 
        if(pos=="center"){ 
                LeftPosition=(screen.width)?(screen.width-w)/2:100; 
                TopPosition=(screen.height)?(screen.height-h)/2:100;} 
        else if((pos!="center" && pos!="random") || pos==null){ 
                LeftPosition=160; 
                TopPosition=250} 

        settings='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable=no'; 
        win=window.open(mypage,myname,settings); 
        if(win.focus){win.focus();}
}

//Áñ°Üã±âÃß°¡
function addfavorites(favoriteurl, favoritetitle){ 
	if (document.all) 
		window.external.AddFavorite(favoriteurl,favoritetitle);
}