// JavaScript Document
function isNumber(field, error_msg){
	var val = field.value;

	if(checkDigitOnly(val, false) ) {
		return true;
	} else {
		if(error_msg.length > 0) {
			alert(error_msg);
			field.focus();
			field.select();
		}
		return false;
	}
}

function checkDigitOnly( digitChar, space ) {
	if(!space){
		if ( digitChar == null || digitChar=='' ){
    		return false ;
    	}
	}

	for(var i=0;i<digitChar.length;i++){
    	var c=digitChar.charCodeAt(i);
       	if( !(  0x30 <= c && c <= 0x39 ) ) {
       		return false ;
       	}
     }

    return true ;
}

function setCookie( name, value, expiredays ) 
{ 
        var todayDate = new Date(); 
        todayDate.setDate( todayDate.getDate() + expiredays ); 
        document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";" 
} 
function getCookie( name ) 
{ 
        var nameOfCookie = name + "="; 
        var x = 0; 
        while ( x <= document.cookie.length ) 
        { 
                var y = (x+nameOfCookie.length); 
                if ( document.cookie.substring( x, y ) == nameOfCookie ) { 
                        if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 ) 
                                endOfCookie = document.cookie.length; 
                        return unescape( document.cookie.substring( y, endOfCookie ) ); 
                } 
                x = document.cookie.indexOf( " ", x ) + 1; 
                if ( x == 0 ) 
                        break; 
        } 
        return ""; 
} 

// À̹ÌÁö »çÀÌÁ ÁÙ¿©ÁÖ´Â ½ºÅ©¸³Æ®
function changeImageSize(pWidth,pHeight) {
	testImg = new Image();
	for (var i=0;i<document.images.length;i++) {
		if (document.images[i].src != ""&&document.images[i].name.substr(0,8)=="tmpPhoto") {
			testImg.src = document.images[i].src;
			if (testImg.width > pWidth || testImg.height > pHeight) {
				if((testImg.width/pWidth) > (testImg.height/pHeight)) {
				    document.images[i].width = pWidth;
				    document.images[i].height = testImg.height * pWidth / testImg.width;
				}
				else {
				    document.images[i].width =testImg.width * pHeight / testImg.height;
				    document.images[i].height = pHeight;
				}
			}
		}
	}
}

// ȸ¿ø°ü·ÃÆ˾÷â
var win = null;
function popupCenter(mypage,myname,w,h,scroll){
	//È­¸é°¡¿îµ¥¶ç¿ì±â
	//LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	//TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	
	//ºÎ¸ðâ ¿Þ¦U»ó´Ü¿¡ ¶ç¿ì±â
	LeftPosition = window.screenLeft
	TopPosition = window.screenTop
	//alert(window.screenLeft+":"+window.screenTop);
	//alert(screen.width);
	//alert(LeftPosition);
	//alert(TopPosition);
	settings =
	'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
	win = window.open(mypage,myname,settings)
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}