function check(str)
{
	//alert(str);
	var quote= new Array(3); 
	quote[0]="Name";
	quote[1]="Email";
	quote[2]="Your Message";
	if(document.imgfrm.txtname.value=="")
	{
		document.imgfrm.txtname.value=quote[0];
	}
	else
	{
		if(document.imgfrm.txtname.value==str)
		{
			document.imgfrm.txtname.value="";
		}
	}
	if(document.imgfrm.txtemail.value=="")
	{
		document.imgfrm.txtemail.value=quote[1];
	}
	else
	{
		if(document.imgfrm.txtemail.value==str)
		{
			document.imgfrm.txtemail.value="";
		}
	}
	if(document.imgfrm.txtmessage.value=="")
	{
		document.imgfrm.txtmessage.value=quote[2];
	}
	else
	{
		if(document.imgfrm.txtmessage.value==str)
		{
			document.imgfrm.txtmessage.value="";
		}
	}
	/*
	var len=document.imgfrm.text.length;
	//alert(len);
	for(i=0;i<len;i++)
	{
		//alert(document.frm.text[i].value);
		if(document.imgfrm.text[i].value=="")
		{
			document.imgfrm.text[i].value=quote[i];
		}
		else
		{
			if(document.imgfrm.text[i].value==str)
			{
				document.imgfrm.text[i].value="";
			}
		}
	}
	*/
}
function checkForm()
{
	var cname, cemail, cmessage, cuploadedfile;
	with(window.document.msgform)
	{
		cname    = sname;
		cemail   = email;
		cmessage = message;
		cuploadedfile = uploadedfile;
	}
	
	if(trim(cname.value) == '')
	{
		alert('Please enter your name');
		cname.focus();
		return false;
	}
	else if(trim(cemail.value) == '')
	{
		alert('Please enter your email');
		cemail.focus();
		return false;
	}
	else if(!isEmail(trim(cemail.value)))
	{
		alert('Email address is not valid');
		cemail.focus();
		return false;
	}
	else if(trim(cmessage.value) == '')
	{
		alert('Please enter your message');
		cmessage.focus();
		return false;
	}
	else if(trim(cuploadedfile.value) == '')
	{
		alert('Please upload a detail doc file');
		cuploadedfile.focus();
		return false;
	}
	else
	{
		cname.value    = trim(cname.value);
		cemail.value   = trim(cemail.value);
		cmessage.value = trim(cmessage.value);
		cuploadedfile.value = trim(cuploadedfile.value);
		return true;
	}
}

/*
Strip whitespace from the beginning and end of a string
Input : a string
*/
function trim(str)
{
	return str.replace(/^\s+|\s+$/g,'');
}
function isEmail(str)
{
	var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;
	return regex.test(str);
}