function movewin(win, width, height) {

		var fullWidth = screen.availWidth;

		var fullHeight = screen.availHeight;

		var x = (fullWidth/2)-(width/2);

		var y = (fullHeight/2)-(height/2);

		win.moveTo(x,y); 

	}

			

function viewWin(filenames,width,Height)

{



	filenames=filenames;

		

	var newwin = window.open(filenames, 'Image', 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,maximize=0,width='+width+',height='+Height);

	

	movewin(newwin, width, Height);

	    if (navigator.appName=="Netscape") 

	        newwin.location=url;

		

		newwin.opener=window;

		newwin.focus();

		return false;

}













function validate()

{

	if(frmshow.first_name.value=="")

	{

		alert("Please Enter First Name!");

		frmshow.first_name.focus();

		return false;

	}

	

	if(frmshow.last_name.value=="")

	{

		alert("Please Enter Last Name!");

		frmshow.last_name.focus();

		return false;

	}

	

	if(frmshow.phone_number.value=="")

	{

		alert("Please Enter Phone Number!");

		frmshow.phone_number.focus();

		return false;

	}

	

	if(frmshow.fax_number.value=="")

	{

		alert("Please Enter Fax Number!");

		frmshow.fax_number.focus();

		return false;

	}

	

	if(!validateEmail(frmshow.email.value))

	{

		alert("Please Enter Correct Email!");

		frmshow.email.focus();

		return false;

	}

	

	

}



function validateEmail(email){

	

	// This function is used to validate a given e-mail 

	// address for the proper syntax

	

	if (email == ""){

		return false;

	}

	badStuff = ";:/,' \"\\";

	for (i=0; i<badStuff.length; i++){

		badCheck = badStuff.charAt(i)

		if (email.indexOf(badCheck,0) != -1){

			return false;

		}

	}

	posOfAtSign = email.indexOf("@",1)

	if (posOfAtSign == -1){

		return false;

	}

	if (email.indexOf("@",posOfAtSign+1) != -1){

		return false;

	}

	posOfPeriod = email.indexOf(".", posOfAtSign)

	if (posOfPeriod == -1){

		return false;

	}

	if (posOfPeriod+2 > email.length){

		return false;

	}

	return true

}



function validatelogin()

{

	if(frmshow.username.value=="")

	{

		alert("Username cannot be blank!");

		frmshow.username.focus();

		return false;

	}

	

	if(frmshow.password.value=="")

	{

		alert("Password cannot be blank!");

		frmshow.password.focus();

		return false;

	}

}