var Agt				=	navigator.userAgent;
var agt				=	Agt.toLowerCase();
//window.alert(Agt);
var isSafari, isFirefoxMac, isMozMac, isIEMac;			/* Cover most used mac browsers */
var isFirefoxWin, isMozWin, isIE5Win, isIE6Win, isIE7Win;	/* Cover most used win browsers */
/* Cover the Mac Browsers (basically) */
isSafari		=	(agt.indexOf("safari") != -1);
isFirefoxMa		=	((agt.indexOf("mac") != -1) && (agt.indexOf("firefox") != -1));
isMozMac		=	((agt.indexOf("mac") != -1) && (agt.indexOf("mozilla") != -1) && (agt.indexOf("msie") == -1));
isIEMac			=	((agt.indexOf("mac") != -1) && (agt.indexOf("msie") != -1) && (agt.indexOf("gecko") == -1));

/* Cover the Windows Browsers */
isFirefoxWin		=	((agt.indexOf("win") != -1) && (agt.indexOf("firefox") != -1));
isMozWin		=	((agt.indexOf("win") != -1) && (agt.indexOf("netscape") != -1));
isIE5Win		=	((agt.indexOf("win") != -1) && (agt.indexOf("msie") != -1));
isIE6Win		=	((agt.indexOf("win") != -1) && (agt.indexOf("msie") != -1));
isIE7Win		=	((agt.indexOf("win") != -1) && (agt.indexOf("msie 7") != -1));

function userAgent() {		
		if(isIE5Win || isIE6Win || isIE7Win) {
			document.write("<link rel='stylesheet' type='text/css' href='css/pstream-win-ie.css' />");			
			document.close();
		} else if(isFirefoxWin || isMozWin) {
			document.write("<link rel='stylesheet' type='text/css' href='css/pstream-win-moz.css' />");			
			document.close();
		} else if(isSafari) {
			document.write("<link rel='stylesheet' type='text/css' href='css/pstream-mac.css' \/>");
			document.close();
		} else if(isFirefoxMac) {
			document.write("<link rel='stylesheet' type='text/css' href='css/pstream-mac.css' \/>");
			document.close();
		} else if(isIEMac) {
			document.write("<link rel='stylesheet' type='text/css' href='css/pstream-mac.css' \/>");
			document.close();
		} else {
			document.write("<link rel='stylesheet' type='text/css' href='css/pstream.css' />");
			document.close();
		}
	}//userAgent();
	userAgent();		// call the userAgent function to direct browser
						// to the correct external stylesheet

function adjustCSS() {
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("center") != -1)) {
		document.getElementById("aes_launch_left_container").style.height = "550px";
	    document.images["bottom_spacer"].height = "152";
		document.getElementById("brown").style.height = "145px";
	}
	if((isIE7Win) && (document.title.toLowerCase().indexOf("center") != -1)) {
		document.getElementById("aes_launch_left_container").style.height = "750px";
	}
	if((isFirefoxWin || isMozWin) && (document.title.toLowerCase().indexOf("center") != -1)) {
	    document.images["bottom_spacer"].height = "213";
		document.getElementById("brown").style.height = "198px";
	}
	if((isSafari) && (document.title.toLowerCase().indexOf("center") != -1)) {
	    document.images["bottom_spacer"].height = "234";
		document.getElementById("brown").style.height = "210px";
	}
	if((isFirefoxMac) && (document.title.toLowerCase().indexOf("center") != -1)) {
	    document.images["bottom_spacer"].height = "183";
		document.getElementById("brown").style.height = "160px";
	}
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("download") != -1)) {
	    document.getElementById("brown").style.height = "312px";
	    document.images["bottom_spacer"].height = "110";		
		document.getElementById("aes_launch_right_container").style.height = "926px";
	}
	if((isFirefoxWin || isMozWin) && (document.title.toLowerCase().indexOf("download") != -1)) {
	    document.getElementById("brown").style.height = "292px";
	    document.images["bottom_spacer"].height = "100";		
		document.getElementById("aes_launch_right_container").style.height = "906px";
	}
	if((isSafari || isFirefoxMac) && (document.title.toLowerCase().indexOf("download") != -1)) {
	    document.getElementById("brown").style.height = "268px";
	    document.images["bottom_spacer"].height = "82";		
		document.getElementById("aes_launch_right_container").style.height = "883px";
	}
	if((isFirefoxWin || isMozWin) && (document.title.toLowerCase().indexOf("about") != -1)) {
		document.images["middle_spacer"].height="720";
	}
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("about") != -1)) {
		document.images["middle_spacer"].height="720";
		document.images["brown1"].height="483";
		document.images["brown2"].height="483";
	}
	if((isFirefoxWin || isMozWin) && (document.title.toLowerCase().indexOf("triggers") != -1)) {
		document.images["middle_spacer"].height="720";
	}
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("triggers") != -1)) {
		document.images["middle_spacer"].height="720";
		document.images["brown1"].height="483";
		document.images["brown2"].height="483";
	}
	if((isFirefoxWin || isMozWin) && (document.title.toLowerCase().indexOf("symptoms") != -1)) {
		document.images["middle_spacer"].height="720";
	}
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("symptoms") != -1)) {
		document.images["middle_spacer"].height="720";
		document.images["brown1"].height="483";
		document.images["brown2"].height="483";
	}
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("treatment") != -1)) {
		document.getElementById("brown_filler_left").style.height = "390px";
		document.getElementById("brown_filler_right").style.height = "390px";
		document.getElementById("aes_lower_content_container").style.height = "645px";
		document.getElementById("aes_video_links").style.marginRight = "9px";
	}
	if((isFirefoxWin || isMozWin) && (document.title.toLowerCase().indexOf("treatment") != -1)) {
		document.images["middle_spacer"].height = "920";
	}
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("treatment") != -1)) {
		document.images["middle_spacer"].height = "903";
	}
	if((isFirefoxWin || isMozWin) && (document.title.toLowerCase().indexOf("prevention") != -1)) {
		document.images["middle_spacer"].height="2772";
	}
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("prevention") != -1)) {
		//document.images["brown1"].height="2490";
		//document.images["brown2"].height="490";
	}
	if((isIE5Win || isIE6Win) && (document.title.toLowerCase().indexOf("resources") != -1)) {
		document.getElementById("brown_filler_left").style.height = "3550px";
		document.getElementById("brown_filler_right").style.height = "3550px";
		document.getElementById("aes_lower_content_container").style.height = "3805px";
	}
	if((isFirefoxWin || isMozWin) && (document.title.toLowerCase().indexOf("resources") != -1)) {
		document.images["middle_spacer"].height="1900";
		document.images["brown1"].height="1646";
		document.images["brown2"].height="1646";
	}
	if((isSafari) && (document.title.toLowerCase().indexOf("resources") != -1)) {
	}
	if((isFirefoxMac) && (document.title.toLowerCase().indexOf("resources") != -1)) {
	}
}