function pop_up_param (iw, ih) {
		var adj=10
		var w = screen.width;
		var h = screen.height;
		var byFactor=1;

		if(w<740)
			{
				var lift=0.90;
			}

		if(w>=740 & w<835)
			{
				var lift=0.91;
			}

		if(w>=835)
			{
				var lift=0.93;
			}
	   
		var scrWidth = w-adj;
		var scrHeight = (h*lift)-adj;

		var posLeft=0;
		var posTop=0;

		var scrHeightTemp = ih - 0;

		if (scrHeightTemp < scrHeight) 
			{
				scrHeight = scrHeightTemp;
			} 

		var scrWidthTemp = iw - 0;

		if (scrWidthTemp < scrWidth) 
			{
				scrWidth = scrWidthTemp;
			}
	  
		if (scrHeight<100)
			{
				scrHeight=100;
			}
		if (scrWidth<100)
			{
				scrWidth=100;
			}

		posTop =  ((h-(scrHeight/lift)-adj)/2);
		posLeft = ((w-(scrWidth)-adj)/2);

		posTop = parseInt(posTop);
		posLeft = parseInt(posLeft);		

		s_top=posTop;
		s_left=posLeft;

		return s_left;
		return s_top;


	}

	function View( iw, ih, daLink ) {
		var comwin; 

		pop_up_param (iw, ih);

		comwin = window.open( daLink, "View","width="+iw+",height="+ih+",scrollbars=no,resizable=no,left="+this.s_left+",top="+this.s_top);
		comwin.focus() ;	    
	}

	function PreviewImage( iw, ih, iid, itype ) {
		var comwin; 

		pop_up_param (iw, ih);

		comwin = window.open("preview.php3?image="+iid+"&type="+itype, "View","width="+iw+",height="+ih+",scrollbars=no,resizable=no,left="+this.s_left+",top="+this.s_top);
		comwin.focus() ;	    
	}

	function Select() {
		var comwin; 

		pop_up_param (400, 400);

		comwin = window.open("select_file.php3", "Select","width=400,height=400,scrollbars=no,resizable=no,left="+this.s_left+",top="+this.s_top);
		comwin.focus() ;	    
	}

	function ViewImage (iw, ih, Image) {
		var comwin;

		pop_up_param (iw, ih);

		comwin = window.open("preview.php3?images="+Image, "View","width="+iw+",height="+ih+",scrollbars=no,resizable=no,left="+this.s_left+",top="+this.s_top);
		comwin.focus() ;	    
	}


	function SendEmail( pid ) {
		var comwin; 

		pop_up_param (460, 200);

		comwin = window.open("email.php3?pid="+pid, "View","width=460,height=200,scrollbars=no,resizable=no,left="+this.s_left+",top="+this.s_top);
		comwin.focus() ;	    
	}

	function AddToBasket ()	{
		var comwin; 

		pop_up_param (780, 500);

		comwin = window.open("shop_add.php3"+pid, "View","width=780,height=500,scrollbars=no,resizable=no,left="+this.s_left+",top="+this.s_top);
		comwin.focus() ;	    
	}

	function ViewHelp () {
		var comwin; 

		pop_up_param (400, 500);

		comwin = window.open("administration_help.php3", "Select","width=400,height=500,scrollbars=no,resizable=no,left="+this.s_left+",top="+this.s_top);
		comwin.focus() ;	    
	}

	function SubmitMailForm () {
		var comwin; 

		pop_up_param (780, 500);

		comwin = window.open("administration_maillist_message_add.php3", "mailform","width=780,height=500,scrollbars=yes,resizable=no,left="+this.s_left+",top="+this.s_top);
		comwin.focus() ;	    
	}