function getValue(tvalue){
	//Parses a URL query string to return the value of the
	// name=value pair specified by the name=tvalue parameter. 
	//Revisions:
	//01/12/01 ach: cleaned up code. always return a value. 
	var pagestring = location.search; //looks like: "?pg=p1.htm&st=p1s1m.asp" 
	pagestring=pagestring.substring(1,pagestring.length);
	var strArr=pagestring.split("&");
	var linkArr=new Array();
	for (var i=0; i<strArr.length; i++){
		var nameval=strArr[i];
		var namevalArr=nameval.split("=");
		var strname=namevalArr[0];
		var strvalue=namevalArr[1];
		linkArr[strname]=strvalue;
	}
	if (linkArr[tvalue]){
		return unescape(linkArr[tvalue]);
	}else{
		return "";
	}
}

function makeDesc(desc, sku){
	var desctxt='------cart empty-------';
	var skulength=4;
	var totallength=desctxt.length;
	var prefix=totallength-skulength;
	var newdesc=desc;	
	if (desc.length > prefix){
		var sdesc=desc.substring(0, prefix);	
		var space=sdesc.lastIndexOf(" ");
		if (space!= (-1)){
			newdesc=sdesc.substring(0,space);
		}else{
			newdesc=sdesc;
		}
	}
	
	var fill='';
	var i=0;
	var j=totallength-(skulength + newdesc.length);
	while (i<j){
		fill+="- ";
		i++;
	}
	var desctxt=newdesc + fill + sku;
	//alert(desctxt.length)
	return desctxt;
}

function getFileName(url){
	var str = new String(url);
	var endpath = str.indexOf("?");
	var fullpath = str;
	if (endpath != (-1)){
		fullpath=str.substring(0,endpath);
	}	
	var endwhack=fullpath.lastIndexOf("/");
	var filename=fullpath.substring(endwhack + 1, fullpath.length);
	return filename;	
}

function getPathName(url){
	var str = new String(url);
	var endpath = str.indexOf("?");
	var fullpath = str;
	if (endpath != (-1)){
		fullpath=str.substring(0,endpath);
	}	
	var endwhack=fullpath.lastIndexOf("/");
	var filename=fullpath.substring(0, endwhack + 1);
	return unescape(filename);	
}

function getParentPathName(url){
	// similar to getPathName, but 
	//returns the full path of the parent folder
	var str = new String(url);
	var endpath = str.indexOf("?");
	var fullpath = str;
	if (endpath != (-1)){
		fullpath=str.substring(0,endpath);
	}	
	var endwhack=fullpath.lastIndexOf("/");
	var filename=fullpath.substring(0, endwhack);
	endwhack=filename.lastIndexOf("/");
	filename=filename.substring(0, endwhack + 1);
	return unescape(filename);	
}