function clearField( field_name )
{
	document.getElementById( field_name ).value = '';
	document.getElementById( field_name ).style.backgroundColor = '';
}

function highlightFields( field_str )
{
	var fields = field_str.split(',');
	
	for( var i=0; i<fields.length; i++ )
	{
		highlightField( fields[i], '#F6F5CF' ); 
	}
	
}


function highlightField( field_name, field_color )
{
	document.getElementById( field_name ).style.backgroundColor = field_color;
}


function formatCurrency(num) 
{
	num = num.toString().replace(/\$|\,/g,'');
	if(isNaN(num))
	num = "0";
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num*100+0.50000000001);
	cents = num%100;
	num = Math.floor(num/100).toString();
	if(cents<10)
	cents = "0" + cents;
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
	num = num.substring(0,num.length-(4*i+3))+','+
	num.substring(num.length-(4*i+3));
	return (((sign)?'':'-') +  num + '.' + cents);
}	//end function

function validate_required_fields(frmName, strTextBoxes)
{
	var oForm = document.getElementById(frmName);
	
	//turn the comma separated list into an array
	var arrBoxes = strTextBoxes.split(",");
	
	error = 0;
	
	//loop thru each box and determine if the text value is empty
	for( var intCount = 0; intCount < arrBoxes.length; intCount++ )
	{
		arrBoxes[intCount] = arrBoxes[intCount].trim_spaces();
		
		//alert( "inCount: " + intCount + " - text box: -->" + arrBoxes[intCount] + "<--" );
		
		var strText = document.getElementById(arrBoxes[intCount]).value;
		
		if( strText.length == 0 )
		{
			error++;
			
		}	//end if
		
	}	//end for loop
	
	//if any errors, then user did not enter all the required fields
	if( error > 0 )
	{
		alert( "Please enter all the required fields." );
		
		valid = false;
		
	}	//end if
	
	else
	{
		valid = true;
		
	}	//end else
	
	return valid;
	
}	//end function

function pop_templates()
{
	window.open('pop_templates.php','admin_pop','width=600,height=400,scrollbars=yes,resizable=yes');	
}

//removes all spaces in a string
function removespaces() 
{
	return this.replace(/.*\S/,'');
	
}	//end function

//trims leading and trailing spaces
function trim_spaces() 
{
	return this.replace(/^\s+/,'').replace(/\s+$/,'');
	
}	//end function

function clear_image( field_id )
{
	document.getElementById( 'pg-' + field_id ).src = 'images/spacer.gif';
	document.getElementById( field_id ).value = '';
	document.getElementById( field_id + '_filename' ).value = '';
}

function clear_link( field_id )
{
	document.getElementById( field_id ).value = '';
	document.getElementById( field_id + '_text' ).innerHTML = '';
	document.getElementById( field_id + '_text' ).style.backgroundColor = '';
}

//IMAGE SWAPPING FOR PROJECT PAGE
function MM_swapImage() { //v3.0
	var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; 
	for(i=0;i<(a.length-2);i+=3)
 	if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}	
function MM_preloadImages() { //v3.0
	var d=document; 
	if(d.images){ 
		if(!d.MM_p) d.MM_p=new Array();
			var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
		for(i=0; i<a.length; i++)
			if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}
	}
}
function MM_findObj(n, d) { //v4.01
	var p,i,x;  
	if(!d) d=document; 
		if((p=n.indexOf("?"))>0&&parent.frames.length) {
		    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
		}
	if(!(x=d[n])&&d.all) x=d.all[n]; 
		for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
		if(!x && d.getElementById) x=d.getElementById(n); return x;
}

//assigns a new function to string types
String.prototype.removespaces = removespaces;
String.prototype.trim_spaces = trim_spaces;