Does Java Script Support space(nbsp) replacement

Hi All ,
I have this func in  Example.xsl file


function replaceString() {
	regX = new RegExp("\@@@","g") ;
	document.form1.Detail.value=document.form1.Detail.value.replace(regX,"\n");

// Here i have to Replace the Blank Space in the document
    	var _blankspace='&nbsp'; // I  have used #160 too... still did not work
    	var _nospace='';

    	regX = new RegExp(_blankspace,"g");
    	document.form1.Detail.value=document.form1.Detail.value.replace(regX,
_nospace);
//

	regX = new RegExp('@lt;',"g");
	document.form1.Detail.value.replace(regX,'<');
	regX = new RegExp('@gt;',"g");
	document.form1.Detail.value.replace(regX,'>');
}


Can anyone tell  me how do i get this working or Have i missed some basics.


Thanks in advice

Ashfaq