function Is() {
var agent = navigator.userAgent.toLowerCase();

this.major = parseInt(navigator.appVersion);
this.minor = parseFloat(navigator.appVersion);
this.ns = ((agent.indexOf('mozilla') != -1) &&
(agent.indexOf('spoofer') == -1) && (agent.indexOf('compatible') == -1) && (agent.indexOf('opera') == -1) && (agent.indexOf('webtv') == -1));
this.ns2 = (this.ns && (this.major == 2));
this.ns3 = (this.ns && (this.major == 3));
this.ns4 = (this.ns && (this.major == 4));
this.ns6 = (this.ns && (this.major >= 5));
this.opera = ((agent.indexOf('opera') != -1));
this.ie = (agent.indexOf("msie") != -1);
this.ie3 = (this.ie && (this.major < 4));
this.ie4 = (this.ie && (this.major == 4) && (agent.indexOf("msie 5.0")   == -1) && (agent.indexOf("msie 6.0")   == -1));
this.ie5 = (this.ie && (this.major == 4) && (agent.indexOf("msie 5.0") != -1));
this.ie6 = (this.ie && (this.major == 4) && (agent.indexOf("msie 6.0") != -1));
this.ieX = (this.ie && !this.ie3 && !this.ie4);
}

var is = new Is();

if(is.ns4 || is.ns6 || is.opera ) {
	available_width=innerWidth;
	available_height=innerHeight;
} else if (is.ie4 || is.ie5  ) {
	available_width=document.body.clientWidth;
	available_height=document.body.clientHeight;
} else if (is.ie6) {

	available_width=document.documentElement.clientWidth;
}


if (available_width > 1000){
	document.write('<style media="screen" type="text/css">@import url(/css/structure2.php);</style>');
}