function validate(){

                var errstring='';
                var flag=1;

	                if(document.getElementById('name').value.length<=0) { errstring=errstring+'- Name\n'; flag=0; }
			if(!validateEmail('email')) { errstring=errstring+'- Email\n'; flag=0; }

	                if(document.getElementById('interest').value.length<=0) { errstring=errstring+'- Area of Interest\n'; flag=0; }


                              if(flag==0) alert('Please fill out these fields correctly:\n\n'+errstring);
                               	else  document.getElementById('topform').submit();
				return false;

}

function validateEmail(field){
	var emailReg = "^[a-z|0-9]+([\-|_|\.]?[a-z|0-9|_]+)*@[a-z|0-9]+([\-|\.]+[a-z|0-9]+)+$";
	var regex = new RegExp(emailReg);
	if (!regex.test(document.getElementById(field).value.toLowerCase()))
	{
		return false;
	}					
return true;
}


function validateZip(field){

	if(document.getElementById(field).value.length<=0) return false; 
	if(!fncIsNumber(document.getElementById(field).value))	return false;
return true;
}


function fncIsNumber(n_strVal) {
	var digits="1234567890.";
	for (var i=0; i < n_strVal.length; i++)
		if (digits.indexOf(n_strVal.charAt(i)) == -1)
			return false;
	return true;
}





function lite(obj){
obj.className='lited';
}

function delite(obj){
obj.className='delited';
}


function updateImage(name){
var obj=document.getElementById('myimage');
obj.src="img/rentals/photos/"+name;
}

function updateImagePre(num,name){
var obj=document.getElementById('myimage');
obj.src=eval("gimage_"+num).src;
sendimage=bigs[num];
resetall();
var tds=document.getElementById('imagetd_'+num);
tds.className="smallcont_2";
curnum=num;

//if(curnum>1) {document.getElementById('prev').className='visible';document.getElementById('next').className='visible';}
//if(curnum<maxnum) {document.getElementById('prev').className='visible';document.getElementById('next').className='visible';}

//if(curnum==1) document.getElementById('prev').className='hidden';
//if(curnum==maxnum) document.getElementById('next').className='hidden';

}

function makenext(){
if(curnum!=maxnum) { curnum++; updateImagePre(curnum,"");}

//if(curnum>1)	document.getElementById('prev').className='visible';
//if(curnum==maxnum)	document.getElementById('next').className='hidden';

}

function makeprev(){
if(maxnum>1)
	{
	curnum--;
	}
if(curnum>=1) {updateImagePre(curnum,"");}
//if(curnum!=1)	document.getElementById('next').className='visible';
//if(curnum==1)	document.getElementById('prev').className='hidden';


}


function resetall(){

var tdd=document.getElementById('imagetd_1');
if(document.all.imagetd_1)
	tdd.className="smallcont";

var tdd2=document.getElementById('imagetd_2');
if(document.all.imagetd_2)
tdd2.className="smallcont";


var tdd3=document.getElementById('imagetd_3');
if(document.all.imagetd_3)
tdd3.className="smallcont";

var tdd4=document.getElementById('imagetd_4');
if(document.all.imagetd_4)
tdd4.className="smallcont";

var tdd5=document.getElementById('imagetd_5');
if(document.all.imagetd_5)
tdd5.className="smallcont";

 var tdd6=document.getElementById('imagetd_6');
if(document.all.imagetd_6)
	tdd6.className="smallcont";

var tdd7=document.getElementById('imagetd_7');
if(document.all.imagetd_7)
tdd7.className="smallcont";
}

var wnd = null;

function open_window(page_url, wid, hei)
{
	var wnd_height = (hei) ? hei : 400;
	var wnd_width = (wid) ? wid : 600;
	var wnd_left = (screen.width - wid)/2;
	var wnd_top = (screen.height - hei)/2;
	if(wnd)
	{
		wnd = window.open(page_url, "preview_wnd", "location=no,menubar=no,personalbar=no,scrollbars=no,status=no,toolbar=no,width="+wnd_width+",height="+wnd_height+",left="+wnd_left+",top="+wnd_top);
		wnd.focus();
	}
	else
	{
		wnd = window.open(page_url, "preview_wnd", "location=no,menubar=no,personalbar=no,scrollbars=no,status=no,toolbar=no,width="+wnd_width+",height="+wnd_height+",left="+wnd_left+",top="+wnd_top);
	}
}