function clearField(txtField)
	{ 
	if (txtField.value == txtField.defaultValue) 
	{ txtField.value = ""; } 
	}
	function checkField(txtField)
	{ 
	if (txtField.value == "") 
	{ txtField.value = txtField.defaultValue; } 
	}


	<!-- ·Ñ¿À¹ö °ü·Ã --> 

	for (var i=1; i<=2; i++)  <!-- 9´Â ·Ñ¿À¹öµÇ´Â À̹ÌÁöÀÇ ¼ýÀÚÀÔ´Ï´Ù. ¼öÁ¤Çϼ¼¿ä--> 
	{ 
        	eval('Menu'+i+'A = new Image();'); 
        	eval('Menu'+i+'B = new Image();'); 
         
        	eval('Menu'+i+'A.src = "./img/icon_'+i+'_off.gif";'); 
        	eval('Menu'+i+'B.src = "./img/icon_'+i+'_on.gif";'); 

	} 
	function BrowserCheck() { 
        	var b = navigator.appName 
	        if (b=="Netscape") this.b = "ns" 
        	else if (b=="Microsoft Internet Explorer") this.b = "ie" 
	        else this.b = b 
        	this.version = navigator.appVersion 
	        this.v = parseInt(this.version) 
	        this.ns = (this.b=="ns" && this.v>=4) 
	        this.ns4 = (this.b=="ns" && this.v==4) 
        	this.ns5 = (this.b=="ns" && this.v==5) 
        	this.ie = (this.b=="ie" && this.v>=4) 
        	this.ie4 = (this.version.indexOf('MSIE 4')>0) 
        	this.ie5 = (this.version.indexOf('MSIE 5')>0) 
        	this.min = (this.ns||this.ie) 
	} 
	is = new BrowserCheck() 

	function chng(ImgName,ImgSrc) 
	{ 

        	if ((screen.colorDepth >= 24) && (is.ie4)) 
        	{ 
        	        eval('document.images.'+ImgName+'.src = '+ImgSrc+'.src;');                         
        	} 
        	else 
        	{ 
                	eval(ImgName + '.filters.blendTrans.stop();'); 
                	eval(ImgName + '.filters.blendTrans.Apply();'); 
                	eval(ImgName + '.src=' + ImgSrc + '.src;'); 
                	eval(ImgName + '.filters.blendTrans.Play();');         
        	} 
	} 

	function chng2(ImgName,ImgSrc) 
	{ 
        	eval('document.images.'+ImgName+'.src = '+ImgSrc+'.src;');                         
	}