function switchImage(newImgID,desc){
	var imgFileName = newImgID.lastIndexOf("/");
	newImgID = newImgID.substring(imgFileName);

	document.getElementById("largeImg").src="photos/large"+newImgID;
	document.getElementById("largeHref").href="photos/full"+newImgID;
//	document.getElementById("imgDesc").innerHTML=desc;
}

function switchImageServices(newImgID,desc){
	var imgFileName = newImgID.lastIndexOf("/");
	newImgID = newImgID.substring(imgFileName);

	document.getElementById("largeImg").src="photos/large"+newImgID;
	document.getElementById("largeHref").href="photos/full"+newImgID;
	
//alert(document.getElementById("largeImg").src)

	if(!desc){
		desc=" "
	}
	document.getElementById("imgDesc").innerHTML=desc;
}

function doLogin(){
	loginVal = document.getElementById("username").value;
	if(loginVal=="client"){
		empireVal = document.getElementById("password").value;
		document.location.href="sec_login_"+loginVal+"_"+empireVal+".html";
	}
	else{
		alert("Incorrect Login Credentials. Please try again.")
//		document.location.href="sec_incorrect_login.html";
	}
}

function getCookie(c_name){
	if (document.cookie.length>0)
	  {
	  c_start=document.cookie.indexOf(c_name + "=");
	  if (c_start!=-1)
		{ 
		c_start=c_start + c_name.length+1; 
		c_end=document.cookie.indexOf(";",c_start);
		if (c_end==-1) c_end=document.cookie.length;
		return unescape(document.cookie.substring(c_start,c_end));
		} 
	  }
	return "";
}

function setCookie(c_name,value,expiredays){
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value);
}




function validateEmail(fld,valText){       
    var error = "";
	var strMail = fld.value
	var regMail =  /^\w+([-.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;

	if (!regMail.test(strMail)){
		fld.style.background = 'Yellow'; 
		error = valText+" \n";
	}
	else{
        fld.style.background = 'White';
	}
   return error;
}


function validateLength(fld,valText,checkLen) {
    var error = "";
    var illegalChars = /\W/; // allow letters, numbers, and underscores
 
	if(!valText){
		valText="required field"
	}

    if (fld.value == "") {
        fld.style.background = 'Yellow'; 
        error = valText+" \n";
    } else if ((fld.value.length < checkLen) || (fld.value.length > checkLen)) {
        fld.style.background = 'Yellow'; 
        error = valText+" \n";
    } else if (illegalChars.test(fld.value)) {
        fld.style.background = 'Yellow'; 
        error = valText+" \n";
    } else {
        fld.style.background = 'White';
    }
    return error;
}

function validateEmpty(fld,valText) {
    var error = "";
	if(!valText){
		valText="required field"
	}
 
    if (fld.value.length == 0) {
        fld.style.background = 'Yellow'; 
        error = "Please enter your "+valText+"\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}