function generateurl(tabindex)
{
	var myURL,param;
        
        param = document.location.search;
         	 	
	if (tabindex == "1"){
		param=param.replace(/site=all_exceptbuyusa/i,"site=buyusa");
		param=param.replace(/TabIndex=2/i,"TabIndex=1");
		
		myURL =  document.location.pathname + param;
		
		document.location.href = myURL;

	}
	else {
		param=param.replace(/site=buyusa/i,"site=all_exceptbuyusa");
		param=param.replace(/TabIndex=1/i,"TabIndex=2");
		
		myURL = document.location.pathname + param;

		document.location.href = myURL;
	}

}