function dynamicLoad(jsFileName){
	//--for cache 
	var now = new Date();
	var getData = jsFileName+'?nc='+now.getTime();
	
	if (document.all) {
		if (navigator.userAgent.indexOf("Win")!=-1) {
			//--for document.all && Win
			eval(document.all('dynld')).src = getData;
		}
		else if (navigator.userAgent.indexOf("Mac")!=-1) {
			//--for document.all && Mac
			document.body.insertAdjacentHTML('BeforeEnd', '<scr'+'ipt src="'+getData+'"><scr'+'ipt/>');
		}
	}
	else if (document.getElementById) {
		//--for w3c-dom  widthout document.all 
		var cnode =document.getElementById('dynld');
		var nnode = document.createElement('script');
		nnode.src = getData;
		nnode.id  = 'dynld';
		cnode.parentNode.replaceChild(nnode,cnode);
	}
	else {
		//--for nondhtml(n4...)
		if (document.images) {
			var datasrc   = new Image();
			datasrc.src   = getData;
			location.href = datasrc.src;
		}
	}
}

document.write('<scr'+'ipt id="dynld"></scr'+'ipt>');